diff --git a/applications/solvers/multiphase/cavitatingFoam/alphavPsi.H b/applications/solvers/multiphase/cavitatingFoam/alphavPsi.H
new file mode 100644
index 0000000000..e988d30737
--- /dev/null
+++ b/applications/solvers/multiphase/cavitatingFoam/alphavPsi.H
@@ -0,0 +1,11 @@
+{
+    alphav = max(min((rho - rholSat)/(rhovSat - rholSat), scalar(1)), scalar(0));
+    alphal = 1.0 - alphav;
+
+    Info<< "max-min alphav: " << max(alphav).value()
+        << " " << min(alphav).value() << endl;
+
+    psiModel->correct();
+
+    //Info<< "min a: " << 1.0/sqrt(max(psi)).value() << endl;
+}
diff --git a/applications/solvers/multiphase/cavitatingFoam/cavitatingFoam.C b/applications/solvers/multiphase/cavitatingFoam/cavitatingFoam.C
index 73e9577029..c4453df391 100644
--- a/applications/solvers/multiphase/cavitatingFoam/cavitatingFoam.C
+++ b/applications/solvers/multiphase/cavitatingFoam/cavitatingFoam.C
@@ -72,7 +72,7 @@ int main(int argc, char *argv[])
         while (pimple.loop())
         {
             #include "rhoEqn.H"
-            #include "gammaPsi.H"
+            #include "alphavPsi.H"
             #include "UEqn.H"
 
             // --- Pressure corrector loop
diff --git a/applications/solvers/multiphase/cavitatingFoam/continuityErrs.H b/applications/solvers/multiphase/cavitatingFoam/continuityErrs.H
index ce618ee40f..14b0ef7786 100644
--- a/applications/solvers/multiphase/cavitatingFoam/continuityErrs.H
+++ b/applications/solvers/multiphase/cavitatingFoam/continuityErrs.H
@@ -1,5 +1,5 @@
 {
-    volScalarField thermoRho = psi*p + gamma2*rhol0;
+    volScalarField thermoRho = psi*p + alphal*rhol0;
 
     dimensionedScalar totalMass = fvc::domainIntegrate(rho);
 
diff --git a/applications/solvers/multiphase/cavitatingFoam/createFields.H b/applications/solvers/multiphase/cavitatingFoam/createFields.H
index 8958dc3c5e..605c0deece 100644
--- a/applications/solvers/multiphase/cavitatingFoam/createFields.H
+++ b/applications/solvers/multiphase/cavitatingFoam/createFields.H
@@ -44,19 +44,19 @@
 
     Info<< "Reading transportProperties\n" << endl;
 
-    incompressibleTwoPhaseMixture twoPhaseProperties(U, phiv, "gamma");
+    incompressibleTwoPhaseMixture twoPhaseProperties(U, phiv);
 
-    volScalarField& gamma(twoPhaseProperties.alpha1());
-    gamma.oldTime();
+    volScalarField& alphav(twoPhaseProperties.alpha1());
+    alphav.oldTime();
 
-    volScalarField& gamma2(twoPhaseProperties.alpha2());
+    volScalarField& alphal(twoPhaseProperties.alpha2());
 
     Info<< "Creating compressibilityModel\n" << endl;
     autoPtr<barotropicCompressibilityModel> psiModel =
         barotropicCompressibilityModel::New
         (
             thermodynamicProperties,
-            gamma
+            alphav
         );
 
     const volScalarField& psi = psiModel->psi();
@@ -64,8 +64,8 @@
     rho == max
     (
         psi*p
-      + gamma2*rhol0
-      + ((gamma*psiv + gamma2*psil) - psi)*pSat,
+      + alphal*rhol0
+      + ((alphav*psiv + alphal*psil) - psi)*pSat,
         rhoMin
     );
 
diff --git a/applications/solvers/multiphase/cavitatingFoam/gammaPsi.H b/applications/solvers/multiphase/cavitatingFoam/gammaPsi.H
deleted file mode 100644
index 4edda7336d..0000000000
--- a/applications/solvers/multiphase/cavitatingFoam/gammaPsi.H
+++ /dev/null
@@ -1,11 +0,0 @@
-{
-    gamma = max(min((rho - rholSat)/(rhovSat - rholSat), scalar(1)), scalar(0));
-    gamma2 = 1.0 - gamma;
-
-    Info<< "max-min gamma: " << max(gamma).value()
-        << " " << min(gamma).value() << endl;
-
-    psiModel->correct();
-
-    //Info<< "min a: " << 1.0/sqrt(max(psi)).value() << endl;
-}
diff --git a/applications/solvers/multiphase/cavitatingFoam/pEqn.H b/applications/solvers/multiphase/cavitatingFoam/pEqn.H
index b2c7d953b5..da43e67ce7 100644
--- a/applications/solvers/multiphase/cavitatingFoam/pEqn.H
+++ b/applications/solvers/multiphase/cavitatingFoam/pEqn.H
@@ -4,8 +4,8 @@
         p =
         (
             rho
-          - gamma2*rhol0
-          - ((gamma*psiv + gamma2*psil) - psi)*pSat
+          - alphal*rhol0
+          - ((alphav*psiv + alphal*psil) - psi)*pSat
         )/psi;
     }
 
@@ -29,7 +29,7 @@
         fvScalarMatrix pEqn
         (
             fvm::ddt(psi, p)
-          - (rhol0 + (psil - psiv)*pSat)*fvc::ddt(gamma) - pSat*fvc::ddt(psi)
+          - (rhol0 + (psil - psiv)*pSat)*fvc::ddt(alphav) - pSat*fvc::ddt(psi)
           + fvc::div(phiv, rho)
           + fvc::div(phiGradp)
           - fvm::laplacian(rAUf, p)
@@ -49,18 +49,18 @@
     rho == max
     (
         psi*p
-      + gamma2*rhol0
-      + ((gamma*psiv + gamma2*psil) - psi)*pSat,
+      + alphal*rhol0
+      + ((alphav*psiv + alphal*psil) - psi)*pSat,
         rhoMin
     );
 
-    #include "gammaPsi.H"
+    #include "alphavPsi.H"
 
     p =
     (
         rho
-      - gamma2*rhol0
-      - ((gamma*psiv + gamma2*psil) - psi)*pSat
+      - alphal*rhol0
+      - ((alphav*psiv + alphal*psil) - psi)*pSat
     )/psi;
 
     p.correctBoundaryConditions();
diff --git a/applications/solvers/multiphase/compressibleInterFoam/twoPhaseMixtureThermo/twoPhaseMixtureThermo.C b/applications/solvers/multiphase/compressibleInterFoam/twoPhaseMixtureThermo/twoPhaseMixtureThermo.C
index d81f5ccb1f..e9c5322c79 100644
--- a/applications/solvers/multiphase/compressibleInterFoam/twoPhaseMixtureThermo/twoPhaseMixtureThermo.C
+++ b/applications/solvers/multiphase/compressibleInterFoam/twoPhaseMixtureThermo/twoPhaseMixtureThermo.C
@@ -49,12 +49,12 @@ Foam::twoPhaseMixtureThermo::twoPhaseMixtureThermo
     thermo2_(NULL)
 {
     {
-        volScalarField T1("T" + phase1Name(), T_);
+        volScalarField T1(IOobject::groupName("T", phase1Name()), T_);
         T1.write();
     }
 
     {
-        volScalarField T2("T" + phase2Name(), T_);
+        volScalarField T2(IOobject::groupName("T", phase2Name()), T_);
         T2.write();
     }
 
diff --git a/applications/solvers/multiphase/interPhaseChangeFoam/phaseChangeTwoPhaseMixtures/Kunz/Kunz.C b/applications/solvers/multiphase/interPhaseChangeFoam/phaseChangeTwoPhaseMixtures/Kunz/Kunz.C
index 0e9e8ae349..f7cc2eae21 100644
--- a/applications/solvers/multiphase/interPhaseChangeFoam/phaseChangeTwoPhaseMixtures/Kunz/Kunz.C
+++ b/applications/solvers/multiphase/interPhaseChangeFoam/phaseChangeTwoPhaseMixtures/Kunz/Kunz.C
@@ -42,11 +42,10 @@ namespace phaseChangeTwoPhaseMixtures
 Foam::phaseChangeTwoPhaseMixtures::Kunz::Kunz
 (
     const volVectorField& U,
-    const surfaceScalarField& phi,
-    const word& alpha1Name
+    const surfaceScalarField& phi
 )
 :
-    phaseChangeTwoPhaseMixture(typeName, U, phi, alpha1Name),
+    phaseChangeTwoPhaseMixture(typeName, U, phi),
 
     UInf_(phaseChangeTwoPhaseMixtureCoeffs_.lookup("UInf")),
     tInf_(phaseChangeTwoPhaseMixtureCoeffs_.lookup("tInf")),
diff --git a/applications/solvers/multiphase/interPhaseChangeFoam/phaseChangeTwoPhaseMixtures/Kunz/Kunz.H b/applications/solvers/multiphase/interPhaseChangeFoam/phaseChangeTwoPhaseMixtures/Kunz/Kunz.H
index 39ccad5382..f0290efc95 100644
--- a/applications/solvers/multiphase/interPhaseChangeFoam/phaseChangeTwoPhaseMixtures/Kunz/Kunz.H
+++ b/applications/solvers/multiphase/interPhaseChangeFoam/phaseChangeTwoPhaseMixtures/Kunz/Kunz.H
@@ -91,8 +91,7 @@ public:
         Kunz
         (
             const volVectorField& U,
-            const surfaceScalarField& phi,
-            const word& alpha1Name = "alpha1"
+            const surfaceScalarField& phi
         );
 
 
diff --git a/applications/solvers/multiphase/interPhaseChangeFoam/phaseChangeTwoPhaseMixtures/Merkle/Merkle.C b/applications/solvers/multiphase/interPhaseChangeFoam/phaseChangeTwoPhaseMixtures/Merkle/Merkle.C
index 87c261da9b..72fdb7245e 100644
--- a/applications/solvers/multiphase/interPhaseChangeFoam/phaseChangeTwoPhaseMixtures/Merkle/Merkle.C
+++ b/applications/solvers/multiphase/interPhaseChangeFoam/phaseChangeTwoPhaseMixtures/Merkle/Merkle.C
@@ -42,11 +42,10 @@ namespace phaseChangeTwoPhaseMixtures
 Foam::phaseChangeTwoPhaseMixtures::Merkle::Merkle
 (
     const volVectorField& U,
-    const surfaceScalarField& phi,
-    const word& alpha1Name
+    const surfaceScalarField& phi
 )
 :
-    phaseChangeTwoPhaseMixture(typeName, U, phi, alpha1Name),
+    phaseChangeTwoPhaseMixture(typeName, U, phi),
 
     UInf_(phaseChangeTwoPhaseMixtureCoeffs_.lookup("UInf")),
     tInf_(phaseChangeTwoPhaseMixtureCoeffs_.lookup("tInf")),
diff --git a/applications/solvers/multiphase/interPhaseChangeFoam/phaseChangeTwoPhaseMixtures/Merkle/Merkle.H b/applications/solvers/multiphase/interPhaseChangeFoam/phaseChangeTwoPhaseMixtures/Merkle/Merkle.H
index 7dd8e841c8..e675c83df7 100644
--- a/applications/solvers/multiphase/interPhaseChangeFoam/phaseChangeTwoPhaseMixtures/Merkle/Merkle.H
+++ b/applications/solvers/multiphase/interPhaseChangeFoam/phaseChangeTwoPhaseMixtures/Merkle/Merkle.H
@@ -85,8 +85,7 @@ public:
         Merkle
         (
             const volVectorField& U,
-            const surfaceScalarField& phi,
-            const word& alpha1Name = "alpha1"
+            const surfaceScalarField& phi
         );
 
 
diff --git a/applications/solvers/multiphase/interPhaseChangeFoam/phaseChangeTwoPhaseMixtures/SchnerrSauer/SchnerrSauer.C b/applications/solvers/multiphase/interPhaseChangeFoam/phaseChangeTwoPhaseMixtures/SchnerrSauer/SchnerrSauer.C
index 36cb56a0c2..f157fa75e0 100644
--- a/applications/solvers/multiphase/interPhaseChangeFoam/phaseChangeTwoPhaseMixtures/SchnerrSauer/SchnerrSauer.C
+++ b/applications/solvers/multiphase/interPhaseChangeFoam/phaseChangeTwoPhaseMixtures/SchnerrSauer/SchnerrSauer.C
@@ -49,11 +49,10 @@ namespace phaseChangeTwoPhaseMixtures
 Foam::phaseChangeTwoPhaseMixtures::SchnerrSauer::SchnerrSauer
 (
     const volVectorField& U,
-    const surfaceScalarField& phi,
-    const word& alpha1Name
+    const surfaceScalarField& phi
 )
 :
-    phaseChangeTwoPhaseMixture(typeName, U, phi, alpha1Name),
+    phaseChangeTwoPhaseMixture(typeName, U, phi),
 
     n_(phaseChangeTwoPhaseMixtureCoeffs_.lookup("n")),
     dNuc_(phaseChangeTwoPhaseMixtureCoeffs_.lookup("dNuc")),
diff --git a/applications/solvers/multiphase/interPhaseChangeFoam/phaseChangeTwoPhaseMixtures/SchnerrSauer/SchnerrSauer.H b/applications/solvers/multiphase/interPhaseChangeFoam/phaseChangeTwoPhaseMixtures/SchnerrSauer/SchnerrSauer.H
index beef7fc7fc..ce096105d9 100644
--- a/applications/solvers/multiphase/interPhaseChangeFoam/phaseChangeTwoPhaseMixtures/SchnerrSauer/SchnerrSauer.H
+++ b/applications/solvers/multiphase/interPhaseChangeFoam/phaseChangeTwoPhaseMixtures/SchnerrSauer/SchnerrSauer.H
@@ -98,8 +98,7 @@ public:
         SchnerrSauer
         (
             const volVectorField& U,
-            const surfaceScalarField& phi,
-            const word& alpha1Name = "alpha1"
+            const surfaceScalarField& phi
         );
 
 
diff --git a/applications/solvers/multiphase/interPhaseChangeFoam/phaseChangeTwoPhaseMixtures/phaseChangeTwoPhaseMixture/newPhaseChangeTwoPhaseMixture.C b/applications/solvers/multiphase/interPhaseChangeFoam/phaseChangeTwoPhaseMixtures/phaseChangeTwoPhaseMixture/newPhaseChangeTwoPhaseMixture.C
index 08728c8f92..0a86459705 100644
--- a/applications/solvers/multiphase/interPhaseChangeFoam/phaseChangeTwoPhaseMixtures/phaseChangeTwoPhaseMixture/newPhaseChangeTwoPhaseMixture.C
+++ b/applications/solvers/multiphase/interPhaseChangeFoam/phaseChangeTwoPhaseMixtures/phaseChangeTwoPhaseMixture/newPhaseChangeTwoPhaseMixture.C
@@ -32,8 +32,7 @@ Foam::autoPtr<Foam::phaseChangeTwoPhaseMixture>
 Foam::phaseChangeTwoPhaseMixture::New
 (
     const volVectorField& U,
-    const surfaceScalarField& phi,
-    const word& alpha1Name
+    const surfaceScalarField& phi
 )
 {
     IOdictionary transportPropertiesDict
@@ -73,7 +72,7 @@ Foam::phaseChangeTwoPhaseMixture::New
             << exit(FatalError);
     }
 
-    return autoPtr<phaseChangeTwoPhaseMixture>(cstrIter()(U, phi, alpha1Name));
+    return autoPtr<phaseChangeTwoPhaseMixture>(cstrIter()(U, phi));
 }
 
 
diff --git a/applications/solvers/multiphase/interPhaseChangeFoam/phaseChangeTwoPhaseMixtures/phaseChangeTwoPhaseMixture/phaseChangeTwoPhaseMixture.C b/applications/solvers/multiphase/interPhaseChangeFoam/phaseChangeTwoPhaseMixtures/phaseChangeTwoPhaseMixture/phaseChangeTwoPhaseMixture.C
index c08eba9390..d25fbdfec9 100644
--- a/applications/solvers/multiphase/interPhaseChangeFoam/phaseChangeTwoPhaseMixtures/phaseChangeTwoPhaseMixture/phaseChangeTwoPhaseMixture.C
+++ b/applications/solvers/multiphase/interPhaseChangeFoam/phaseChangeTwoPhaseMixtures/phaseChangeTwoPhaseMixture/phaseChangeTwoPhaseMixture.C
@@ -39,11 +39,10 @@ Foam::phaseChangeTwoPhaseMixture::phaseChangeTwoPhaseMixture
 (
     const word& type,
     const volVectorField& U,
-    const surfaceScalarField& phi,
-    const word& alpha1Name
+    const surfaceScalarField& phi
 )
 :
-    incompressibleTwoPhaseMixture(U, phi, alpha1Name),
+    incompressibleTwoPhaseMixture(U, phi),
     phaseChangeTwoPhaseMixtureCoeffs_(subDict(type + "Coeffs")),
     pSat_(lookup("pSat"))
 {}
diff --git a/applications/solvers/multiphase/interPhaseChangeFoam/phaseChangeTwoPhaseMixtures/phaseChangeTwoPhaseMixture/phaseChangeTwoPhaseMixture.H b/applications/solvers/multiphase/interPhaseChangeFoam/phaseChangeTwoPhaseMixtures/phaseChangeTwoPhaseMixture/phaseChangeTwoPhaseMixture.H
index e05476390b..227768ac8d 100644
--- a/applications/solvers/multiphase/interPhaseChangeFoam/phaseChangeTwoPhaseMixtures/phaseChangeTwoPhaseMixture/phaseChangeTwoPhaseMixture.H
+++ b/applications/solvers/multiphase/interPhaseChangeFoam/phaseChangeTwoPhaseMixtures/phaseChangeTwoPhaseMixture/phaseChangeTwoPhaseMixture.H
@@ -91,10 +91,9 @@ public:
             components,
             (
                 const volVectorField& U,
-                const surfaceScalarField& phi,
-                const word& alpha1Name
+                const surfaceScalarField& phi
             ),
-            (U, phi, alpha1Name)
+            (U, phi)
         );
 
 
@@ -104,8 +103,7 @@ public:
         static autoPtr<phaseChangeTwoPhaseMixture> New
         (
             const volVectorField& U,
-            const surfaceScalarField& phi,
-            const word& alpha1Name = "alpha1"
+            const surfaceScalarField& phi
         );
 
 
@@ -116,8 +114,7 @@ public:
         (
             const word& type,
             const volVectorField& U,
-            const surfaceScalarField& phi,
-            const word& alpha1Name = "alpha1"
+            const surfaceScalarField& phi
         );
 
 
diff --git a/applications/solvers/multiphase/twoLiquidMixingFoam/alphaEqn.H b/applications/solvers/multiphase/twoLiquidMixingFoam/alphaEqn.H
index c68a0e56c5..adca48e965 100644
--- a/applications/solvers/multiphase/twoLiquidMixingFoam/alphaEqn.H
+++ b/applications/solvers/multiphase/twoLiquidMixingFoam/alphaEqn.H
@@ -1,5 +1,5 @@
 {
-    word alphaScheme("div(phi,alpha1)");
+    word alphaScheme("div(phi,alpha)");
 
     surfaceScalarField phiAlpha
     (
diff --git a/src/finiteVolume/fields/fvPatchFields/derived/variableHeightFlowRateInletVelocity/variableHeightFlowRateInletVelocityFvPatchVectorField.C b/src/finiteVolume/fields/fvPatchFields/derived/variableHeightFlowRateInletVelocity/variableHeightFlowRateInletVelocityFvPatchVectorField.C
index 72af0d8d9c..1fcc5feb7d 100644
--- a/src/finiteVolume/fields/fvPatchFields/derived/variableHeightFlowRateInletVelocity/variableHeightFlowRateInletVelocityFvPatchVectorField.C
+++ b/src/finiteVolume/fields/fvPatchFields/derived/variableHeightFlowRateInletVelocity/variableHeightFlowRateInletVelocityFvPatchVectorField.C
@@ -39,7 +39,8 @@ Foam::variableHeightFlowRateInletVelocityFvPatchVectorField
 )
 :
     fixedValueFvPatchField<vector>(p, iF),
-    flowRate_(0)
+    flowRate_(0),
+    alphaName_("none")
 {}
 
 
@@ -53,7 +54,8 @@ Foam::variableHeightFlowRateInletVelocityFvPatchVectorField
 )
 :
     fixedValueFvPatchField<vector>(ptf, p, iF, mapper),
-    flowRate_(ptf.flowRate_)
+    flowRate_(ptf.flowRate_),
+    alphaName_(ptf.alphaName_)
 {}
 
 
@@ -66,7 +68,8 @@ Foam::variableHeightFlowRateInletVelocityFvPatchVectorField
 )
 :
     fixedValueFvPatchField<vector>(p, iF, dict),
-    flowRate_(readScalar(dict.lookup("flowRate")))
+    flowRate_(readScalar(dict.lookup("flowRate"))),
+    alphaName_(dict.lookup("alpha"))
 {}
 
 
@@ -77,7 +80,8 @@ Foam::variableHeightFlowRateInletVelocityFvPatchVectorField
 )
 :
     fixedValueFvPatchField<vector>(ptf),
-    flowRate_(ptf.flowRate_)
+    flowRate_(ptf.flowRate_),
+    alphaName_(ptf.alphaName_)
 {}
 
 
@@ -89,7 +93,8 @@ Foam::variableHeightFlowRateInletVelocityFvPatchVectorField
 )
 :
     fixedValueFvPatchField<vector>(ptf, iF),
-    flowRate_(ptf.flowRate_)
+    flowRate_(ptf.flowRate_),
+    alphaName_(ptf.alphaName_)
 {}
 
 
@@ -104,7 +109,7 @@ void Foam::variableHeightFlowRateInletVelocityFvPatchVectorField
     }
 
     scalarField alphap =
-        patch().lookupPatchField<volScalarField, scalar>("alpha1");
+        patch().lookupPatchField<volScalarField, scalar>(alphaName_);
 
     alphap = max(alphap, scalar(0));
     alphap = min(alphap, scalar(1));
@@ -129,6 +134,8 @@ void Foam::variableHeightFlowRateInletVelocityFvPatchVectorField::write
 
     os.writeKeyword("flowRate") << flowRate_
         << token::END_STATEMENT << nl;
+    os.writeKeyword("alpha") << alphaName_
+        << token::END_STATEMENT << nl;
     writeEntry("value", os);
 }
 
diff --git a/src/finiteVolume/fields/fvPatchFields/derived/variableHeightFlowRateInletVelocity/variableHeightFlowRateInletVelocityFvPatchVectorField.H b/src/finiteVolume/fields/fvPatchFields/derived/variableHeightFlowRateInletVelocity/variableHeightFlowRateInletVelocityFvPatchVectorField.H
index 10e6a2c889..34742c7567 100644
--- a/src/finiteVolume/fields/fvPatchFields/derived/variableHeightFlowRateInletVelocity/variableHeightFlowRateInletVelocityFvPatchVectorField.H
+++ b/src/finiteVolume/fields/fvPatchFields/derived/variableHeightFlowRateInletVelocity/variableHeightFlowRateInletVelocityFvPatchVectorField.H
@@ -39,6 +39,7 @@ Description
     \table
         Property     | Description             | Required    | Default value
         flowRate     | volumetric flow rate [m3/s] | yes |
+        alpha        | phase-fraction field    | yes |
     \endtable
 
     Example of the boundary condition specification:
@@ -47,6 +48,7 @@ Description
     {
         type            variableHeightFlowRateInletVelocity;
         flowRate        0.2;
+        alpha           alpha.water;
         value           uniform (0 0 0); // placeholder
     }
     \endverbatim
@@ -87,6 +89,9 @@ class variableHeightFlowRateInletVelocityFvPatchVectorField
         //- Inlet integral flow rate
         scalar flowRate_;
 
+        //- Name of the phase-fraction field
+        word alphaName_;
+
 
 public:
 
diff --git a/src/transportModels/incompressible/incompressibleTwoPhaseMixture/incompressibleTwoPhaseMixture.C b/src/transportModels/incompressible/incompressibleTwoPhaseMixture/incompressibleTwoPhaseMixture.C
index 36c9076486..5aa56a1062 100644
--- a/src/transportModels/incompressible/incompressibleTwoPhaseMixture/incompressibleTwoPhaseMixture.C
+++ b/src/transportModels/incompressible/incompressibleTwoPhaseMixture/incompressibleTwoPhaseMixture.C
@@ -53,9 +53,7 @@ void Foam::incompressibleTwoPhaseMixture::calcNu()
 Foam::incompressibleTwoPhaseMixture::incompressibleTwoPhaseMixture
 (
     const volVectorField& U,
-    const surfaceScalarField& phi,
-    const word& alpha1Name,
-    const word& alpha2Name
+    const surfaceScalarField& phi
 )
 :
     IOdictionary
@@ -69,14 +67,14 @@ Foam::incompressibleTwoPhaseMixture::incompressibleTwoPhaseMixture
             IOobject::NO_WRITE
         )
     ),
-    twoPhaseMixture(U.mesh(), *this, alpha1Name, alpha2Name),
+    twoPhaseMixture(U.mesh(), *this),
 
     nuModel1_
     (
         viscosityModel::New
         (
             "nu1",
-            subDict(phase1Name_ == "1" ? "phase1": phase1Name_),
+            subDict(phase1Name_),
             U,
             phi
         )
@@ -86,7 +84,7 @@ Foam::incompressibleTwoPhaseMixture::incompressibleTwoPhaseMixture
         viscosityModel::New
         (
             "nu2",
-            subDict(phase2Name_ == "2" ? "phase2": phase2Name_),
+            subDict(phase2Name_),
             U,
             phi
         )
diff --git a/src/transportModels/incompressible/incompressibleTwoPhaseMixture/incompressibleTwoPhaseMixture.H b/src/transportModels/incompressible/incompressibleTwoPhaseMixture/incompressibleTwoPhaseMixture.H
index 8ec33989c9..5c4920e17f 100644
--- a/src/transportModels/incompressible/incompressibleTwoPhaseMixture/incompressibleTwoPhaseMixture.H
+++ b/src/transportModels/incompressible/incompressibleTwoPhaseMixture/incompressibleTwoPhaseMixture.H
@@ -86,9 +86,7 @@ public:
         incompressibleTwoPhaseMixture
         (
             const volVectorField& U,
-            const surfaceScalarField& phi,
-            const word& alpha1Name = "alpha1",
-            const word& alpha2Name = "alpha2"
+            const surfaceScalarField& phi
         );
 
 
diff --git a/src/transportModels/twoPhaseMixture/twoPhaseMixture/twoPhaseMixture.C b/src/transportModels/twoPhaseMixture/twoPhaseMixture/twoPhaseMixture.C
index 7b95752f37..253b1092e7 100644
--- a/src/transportModels/twoPhaseMixture/twoPhaseMixture/twoPhaseMixture.C
+++ b/src/transportModels/twoPhaseMixture/twoPhaseMixture/twoPhaseMixture.C
@@ -31,29 +31,17 @@ License
 Foam::twoPhaseMixture::twoPhaseMixture
 (
     const fvMesh& mesh,
-    const dictionary& dict,
-    const word& alpha1Name,
-    const word& alpha2Name
+    const dictionary& dict
 )
 :
-    phase1Name_
-    (
-        dict.found("phases")
-      ? wordList(dict.lookup("phases"))[0]
-      : "1"
-    ),
-    phase2Name_
-    (
-        dict.found("phases")
-      ? wordList(dict.lookup("phases"))[1]
-      : "2"
-    ),
+    phase1Name_(wordList(dict.lookup("phases"))[0]),
+    phase2Name_(wordList(dict.lookup("phases"))[1]),
 
     alpha1_
     (
         IOobject
         (
-            dict.found("phases") ? word("alpha" + phase1Name_) : alpha1Name,
+            IOobject::groupName("alpha", phase1Name_),
             mesh.time().timeName(),
             mesh,
             IOobject::MUST_READ,
@@ -66,7 +54,7 @@ Foam::twoPhaseMixture::twoPhaseMixture
     (
         IOobject
         (
-            dict.found("phases") ? word("alpha" + phase2Name_) : alpha2Name,
+            IOobject::groupName("alpha", phase2Name_),
             mesh.time().timeName(),
             mesh
         ),
diff --git a/src/transportModels/twoPhaseMixture/twoPhaseMixture/twoPhaseMixture.H b/src/transportModels/twoPhaseMixture/twoPhaseMixture/twoPhaseMixture.H
index 668c4f2cfd..aa5ae24d04 100644
--- a/src/transportModels/twoPhaseMixture/twoPhaseMixture/twoPhaseMixture.H
+++ b/src/transportModels/twoPhaseMixture/twoPhaseMixture/twoPhaseMixture.H
@@ -67,9 +67,7 @@ public:
         twoPhaseMixture
         (
             const fvMesh& mesh,
-            const dictionary& dict,
-            const word& alpha1Name = "alpha1",
-            const word& alpha2Name = "alpha2"
+            const dictionary& dict
         );
 
 
diff --git a/tutorials/multiphase/LTSInterFoam/wigleyHull/0/alpha1.org b/tutorials/multiphase/LTSInterFoam/wigleyHull/0/alpha.water.org
similarity index 100%
rename from tutorials/multiphase/LTSInterFoam/wigleyHull/0/alpha1.org
rename to tutorials/multiphase/LTSInterFoam/wigleyHull/0/alpha.water.org
diff --git a/tutorials/multiphase/LTSInterFoam/wigleyHull/Allclean b/tutorials/multiphase/LTSInterFoam/wigleyHull/Allclean
index 333348ffdf..99318580f3 100755
--- a/tutorials/multiphase/LTSInterFoam/wigleyHull/Allclean
+++ b/tutorials/multiphase/LTSInterFoam/wigleyHull/Allclean
@@ -8,7 +8,7 @@ cd ${0%/*} || exit 1    # run from this directory
 \rm -f constant/triSurface/wigley-scaled-oriented.stl.gz
 
 cleanCase
-rm 0/alpha1.gz 0/cellLevel.gz 0/pointLevel.gz constant/polyMesh/boundary \
+rm 0/alpha.water.gz 0/cellLevel.gz 0/pointLevel.gz constant/polyMesh/boundary \
     > /dev/null 2>&1
 
 # ----------------------------------------------------------------- end-of-file
diff --git a/tutorials/multiphase/LTSInterFoam/wigleyHull/Allrun b/tutorials/multiphase/LTSInterFoam/wigleyHull/Allrun
index 28fec41b1f..2924a2cd45 100755
--- a/tutorials/multiphase/LTSInterFoam/wigleyHull/Allrun
+++ b/tutorials/multiphase/LTSInterFoam/wigleyHull/Allrun
@@ -13,7 +13,7 @@ if [ ! -e log.transformPoints ]
 then
     transformPoints -scale '(2 1 1)' > log.transformPoints 2>&1
 fi
-cp 0/alpha1.org 0/alpha1
+cp 0/alpha.water.org 0/alpha.water
 runApplication setFields
 runApplication `getApplication`
 
diff --git a/tutorials/multiphase/LTSInterFoam/wigleyHull/constant/transportProperties b/tutorials/multiphase/LTSInterFoam/wigleyHull/constant/transportProperties
index aa9b560484..8c6e7a2008 100644
--- a/tutorials/multiphase/LTSInterFoam/wigleyHull/constant/transportProperties
+++ b/tutorials/multiphase/LTSInterFoam/wigleyHull/constant/transportProperties
@@ -15,14 +15,16 @@ FoamFile
 }
 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
-phase1
+phases (water air);
+
+water
 {
     transportModel  Newtonian;
     nu              nu [ 0 2 -1 0 0 0 0 ]  1e-06;
     rho             rho [ 1 -3 0 0 0 0 0 ] 1000;
 }
 
-phase2
+air
 {
     transportModel  Newtonian;
     nu              nu [ 0 2 -1 0 0 0 0 ]  1.48e-05;
diff --git a/tutorials/multiphase/LTSInterFoam/wigleyHull/system/fvSchemes b/tutorials/multiphase/LTSInterFoam/wigleyHull/system/fvSchemes
index 7018c5eaa7..de87355816 100644
--- a/tutorials/multiphase/LTSInterFoam/wigleyHull/system/fvSchemes
+++ b/tutorials/multiphase/LTSInterFoam/wigleyHull/system/fvSchemes
@@ -55,7 +55,7 @@ fluxRequired
     default         no;
     p_rgh;
     pcorr;
-    alpha1;
+    alpha.water;
 }
 
 
diff --git a/tutorials/multiphase/LTSInterFoam/wigleyHull/system/fvSolution b/tutorials/multiphase/LTSInterFoam/wigleyHull/system/fvSolution
index 76eaf8fd2a..e59fb400df 100644
--- a/tutorials/multiphase/LTSInterFoam/wigleyHull/system/fvSolution
+++ b/tutorials/multiphase/LTSInterFoam/wigleyHull/system/fvSolution
@@ -17,7 +17,7 @@ FoamFile
 
 solvers
 {
-    alpha1
+    alpha.water
     {
         nAlphaCorr      1;
         nAlphaSubCycles 1;
diff --git a/tutorials/multiphase/LTSInterFoam/wigleyHull/system/setFieldsDict b/tutorials/multiphase/LTSInterFoam/wigleyHull/system/setFieldsDict
index b249127996..75a2dfccb8 100644
--- a/tutorials/multiphase/LTSInterFoam/wigleyHull/system/setFieldsDict
+++ b/tutorials/multiphase/LTSInterFoam/wigleyHull/system/setFieldsDict
@@ -17,7 +17,7 @@ FoamFile
 
 defaultFieldValues
 (
-    volScalarFieldValue alpha1 0
+    volScalarFieldValue alpha.water 0
 );
 
 regions
@@ -27,7 +27,7 @@ regions
         box (-100 -100 -100) (100 100 0);
         fieldValues
         (
-            volScalarFieldValue alpha1 1
+            volScalarFieldValue alpha.water 1
         );
     }
 );
diff --git a/tutorials/multiphase/MRFInterFoam/mixerVessel2D/0/alpha1 b/tutorials/multiphase/MRFInterFoam/mixerVessel2D/0/alpha.water
similarity index 99%
rename from tutorials/multiphase/MRFInterFoam/mixerVessel2D/0/alpha1
rename to tutorials/multiphase/MRFInterFoam/mixerVessel2D/0/alpha.water
index 1b5529949c..766d8c1462 100644
--- a/tutorials/multiphase/MRFInterFoam/mixerVessel2D/0/alpha1
+++ b/tutorials/multiphase/MRFInterFoam/mixerVessel2D/0/alpha.water
@@ -11,7 +11,7 @@ FoamFile
     format      ascii;
     class       volScalarField;
     location    "0";
-    object      alpha1;
+    object      alpha.water;
 }
 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
diff --git a/tutorials/multiphase/MRFInterFoam/mixerVessel2D/0/alpha1.org b/tutorials/multiphase/MRFInterFoam/mixerVessel2D/0/alpha.water.org
similarity index 97%
rename from tutorials/multiphase/MRFInterFoam/mixerVessel2D/0/alpha1.org
rename to tutorials/multiphase/MRFInterFoam/mixerVessel2D/0/alpha.water.org
index 0f3dcd4639..e1483e3c1e 100644
--- a/tutorials/multiphase/MRFInterFoam/mixerVessel2D/0/alpha1.org
+++ b/tutorials/multiphase/MRFInterFoam/mixerVessel2D/0/alpha.water.org
@@ -10,7 +10,7 @@ FoamFile
     version     2.0;
     format      ascii;
     class       volScalarField;
-    object      alpha1;
+    object      alpha.water;
 }
 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
diff --git a/tutorials/multiphase/MRFInterFoam/mixerVessel2D/constant/transportProperties b/tutorials/multiphase/MRFInterFoam/mixerVessel2D/constant/transportProperties
index ff55cf97da..15e0e327a4 100644
--- a/tutorials/multiphase/MRFInterFoam/mixerVessel2D/constant/transportProperties
+++ b/tutorials/multiphase/MRFInterFoam/mixerVessel2D/constant/transportProperties
@@ -15,14 +15,16 @@ FoamFile
 }
 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
-phase1
+phases (water oir);
+
+water
 {
     transportModel  Newtonian;
     nu              nu [ 0 2 -1 0 0 0 0 ] 1e-4;
     rho             rho [ 1 -3 0 0 0 0 0 ] 1000;
 }
 
-phase2
+oir
 {
     transportModel  Newtonian;
     nu              nu [ 0 2 -1 0 0 0 0 ] 1e-4;
diff --git a/tutorials/multiphase/MRFInterFoam/mixerVessel2D/system/fvSchemes b/tutorials/multiphase/MRFInterFoam/mixerVessel2D/system/fvSchemes
index 3827ac6548..568660217f 100644
--- a/tutorials/multiphase/MRFInterFoam/mixerVessel2D/system/fvSchemes
+++ b/tutorials/multiphase/MRFInterFoam/mixerVessel2D/system/fvSchemes
@@ -53,7 +53,7 @@ fluxRequired
     default         no;
     p_rgh           ;
     pcorr           ;
-    alpha1          ;
+    alpha.water          ;
 }
 
 
diff --git a/tutorials/multiphase/MRFInterFoam/mixerVessel2D/system/fvSolution b/tutorials/multiphase/MRFInterFoam/mixerVessel2D/system/fvSolution
index 87856ee3ca..4d0d891558 100644
--- a/tutorials/multiphase/MRFInterFoam/mixerVessel2D/system/fvSolution
+++ b/tutorials/multiphase/MRFInterFoam/mixerVessel2D/system/fvSolution
@@ -17,7 +17,7 @@ FoamFile
 
 solvers
 {
-    alpha1
+    alpha.water
     {
         nAlphaCorr      1;
         nAlphaSubCycles 2;
diff --git a/tutorials/multiphase/MRFInterFoam/mixerVessel2D/system/setFieldsDict b/tutorials/multiphase/MRFInterFoam/mixerVessel2D/system/setFieldsDict
index 75b90a3695..c5884201fc 100644
--- a/tutorials/multiphase/MRFInterFoam/mixerVessel2D/system/setFieldsDict
+++ b/tutorials/multiphase/MRFInterFoam/mixerVessel2D/system/setFieldsDict
@@ -17,7 +17,7 @@ FoamFile
 
 defaultFieldValues
 (
-    volScalarFieldValue alpha1 0
+    volScalarFieldValue alpha.water 0
 );
 
 regions
@@ -27,7 +27,7 @@ regions
         box (0 0 -1) (1 1 1);
         fieldValues
         (
-            volScalarFieldValue alpha1 1
+            volScalarFieldValue alpha.water 1
         );
     }
 );
diff --git a/tutorials/multiphase/cavitatingFoam/ras/throttle/0/gamma b/tutorials/multiphase/cavitatingFoam/les/throttle/0/alpha.vapour
similarity index 97%
rename from tutorials/multiphase/cavitatingFoam/ras/throttle/0/gamma
rename to tutorials/multiphase/cavitatingFoam/les/throttle/0/alpha.vapour
index 14593028c1..0adb2cfd3a 100644
--- a/tutorials/multiphase/cavitatingFoam/ras/throttle/0/gamma
+++ b/tutorials/multiphase/cavitatingFoam/les/throttle/0/alpha.vapour
@@ -10,7 +10,7 @@ FoamFile
     version     2.0;
     format      ascii;
     class       volScalarField;
-    object      gamma;
+    object      alpha.vapour;
 }
 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
diff --git a/tutorials/multiphase/cavitatingFoam/les/throttle/constant/transportProperties b/tutorials/multiphase/cavitatingFoam/les/throttle/constant/transportProperties
index b37439a124..c5ea29f7a5 100644
--- a/tutorials/multiphase/cavitatingFoam/les/throttle/constant/transportProperties
+++ b/tutorials/multiphase/cavitatingFoam/les/throttle/constant/transportProperties
@@ -19,14 +19,9 @@ mul             mul [ 1 -1 -1 0 0 ] 0.0065;
 
 muv             muv [ 1 -1 -1 0 0 ] 5.953e-06;
 
-twoPhase
-{
-    transportModel  twoPhase;
-    phase1          phase1;
-    phase2          phase2;
-}
+phases (vapour water);
 
-phase1
+water
 {
     transportModel  Newtonian;
     nu              nu [ 0 2 -1 0 0 0 0 ] 7.831e-06;
@@ -48,7 +43,7 @@ phase1
     }
 }
 
-phase2
+vapour
 {
     transportModel  Newtonian;
     nu              nu [ 0 2 -1 0 0 0 0 ] 4.252e-05;
diff --git a/tutorials/multiphase/cavitatingFoam/les/throttle/system/controlDict b/tutorials/multiphase/cavitatingFoam/les/throttle/system/controlDict
index 234af680ca..4507e794d2 100644
--- a/tutorials/multiphase/cavitatingFoam/les/throttle/system/controlDict
+++ b/tutorials/multiphase/cavitatingFoam/les/throttle/system/controlDict
@@ -73,7 +73,7 @@ functions
                 base        time;
             }
 
-            gamma
+            alpha.vapour
             {
                 mean        on;
                 prime2Mean  off;
diff --git a/tutorials/multiphase/cavitatingFoam/les/throttle3D/0.org/gamma b/tutorials/multiphase/cavitatingFoam/les/throttle3D/0.org/alpha.vapour
similarity index 97%
rename from tutorials/multiphase/cavitatingFoam/les/throttle3D/0.org/gamma
rename to tutorials/multiphase/cavitatingFoam/les/throttle3D/0.org/alpha.vapour
index 669af89cbf..40cd251c1c 100644
--- a/tutorials/multiphase/cavitatingFoam/les/throttle3D/0.org/gamma
+++ b/tutorials/multiphase/cavitatingFoam/les/throttle3D/0.org/alpha.vapour
@@ -10,7 +10,7 @@ FoamFile
     version     2.0;
     format      ascii;
     class       volScalarField;
-    object      gamma;
+    object      alpha.vapour;
 }
 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
diff --git a/tutorials/multiphase/cavitatingFoam/les/throttle3D/0/U b/tutorials/multiphase/cavitatingFoam/les/throttle3D/0/U
deleted file mode 100644
index 5321455943..0000000000
--- a/tutorials/multiphase/cavitatingFoam/les/throttle3D/0/U
+++ /dev/null
@@ -1,48 +0,0 @@
-/*--------------------------------*- C++ -*----------------------------------*\
-| =========                 |                                                 |
-| \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox           |
-|  \\    /   O peration     | Version:  dev                                   |
-|   \\  /    A nd           | Web:      www.OpenFOAM.org                      |
-|    \\/     M anipulation  |                                                 |
-\*---------------------------------------------------------------------------*/
-FoamFile
-{
-    version     2.0;
-    format      ascii;
-    class       volVectorField;
-    object      U;
-}
-// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
-
-dimensions      [0 1 -1 0 0];
-
-internalField   uniform (0 0 0);
-
-boundaryField
-{
-    inlet
-    {
-        type            zeroGradient;
-        value           uniform (0 0 0);
-    }
-
-    outlet
-    {
-        type            zeroGradient;
-        value           uniform (0 0 0);
-    }
-
-    walls
-    {
-        type            fixedValue;
-        value           uniform (0 0 0);
-    }
-
-    frontBack
-    {
-        type            fixedValue;
-        value           uniform (0 0 0);
-    }
-}
-
-// ************************************************************************* //
diff --git a/tutorials/multiphase/cavitatingFoam/les/throttle3D/0/gamma b/tutorials/multiphase/cavitatingFoam/les/throttle3D/0/gamma
deleted file mode 100644
index 669af89cbf..0000000000
--- a/tutorials/multiphase/cavitatingFoam/les/throttle3D/0/gamma
+++ /dev/null
@@ -1,48 +0,0 @@
-/*--------------------------------*- C++ -*----------------------------------*\
-| =========                 |                                                 |
-| \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox           |
-|  \\    /   O peration     | Version:  dev                                   |
-|   \\  /    A nd           | Web:      www.OpenFOAM.org                      |
-|    \\/     M anipulation  |                                                 |
-\*---------------------------------------------------------------------------*/
-FoamFile
-{
-    version     2.0;
-    format      ascii;
-    class       volScalarField;
-    object      gamma;
-}
-// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
-
-dimensions      [0 0 0 0 0];
-
-internalField   uniform 0;
-
-boundaryField
-{
-    inlet
-    {
-        type            calculated;
-        value           uniform 0;
-    }
-
-    outlet
-    {
-        type            calculated;
-        value           uniform 0;
-    }
-
-    walls
-    {
-        type            calculated;
-        value           uniform 0;
-    }
-
-    frontBack
-    {
-        type            calculated;
-        value           uniform 0;
-    }
-}
-
-// ************************************************************************* //
diff --git a/tutorials/multiphase/cavitatingFoam/les/throttle3D/0/k b/tutorials/multiphase/cavitatingFoam/les/throttle3D/0/k
deleted file mode 100644
index 9df6a831bf..0000000000
--- a/tutorials/multiphase/cavitatingFoam/les/throttle3D/0/k
+++ /dev/null
@@ -1,47 +0,0 @@
-/*--------------------------------*- C++ -*----------------------------------*\
-| =========                 |                                                 |
-| \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox           |
-|  \\    /   O peration     | Version:  dev                                   |
-|   \\  /    A nd           | Web:      www.OpenFOAM.org                      |
-|    \\/     M anipulation  |                                                 |
-\*---------------------------------------------------------------------------*/
-FoamFile
-{
-    version     2.0;
-    format      ascii;
-    class       volScalarField;
-    object      k;
-}
-// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
-
-dimensions      [0 2 -2 0 0];
-
-internalField   uniform 10;
-
-boundaryField
-{
-    inlet
-    {
-        type            turbulentIntensityKineticEnergyInlet;
-        intensity       0.05;
-        value           uniform 0.05;
-    }
-
-    outlet
-    {
-        type            zeroGradient;
-    }
-
-    walls
-    {
-        type            kqRWallFunction;
-        value           uniform 10;
-    }
-
-    frontBack
-    {
-        type            zeroGradient;
-    }
-}
-
-// ************************************************************************* //
diff --git a/tutorials/multiphase/cavitatingFoam/les/throttle3D/0/nuSgs b/tutorials/multiphase/cavitatingFoam/les/throttle3D/0/nuSgs
deleted file mode 100644
index c4d32cf2ff..0000000000
--- a/tutorials/multiphase/cavitatingFoam/les/throttle3D/0/nuSgs
+++ /dev/null
@@ -1,47 +0,0 @@
-/*--------------------------------*- C++ -*----------------------------------*\
-| =========                 |                                                 |
-| \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox           |
-|  \\    /   O peration     | Version:  dev                                   |
-|   \\  /    A nd           | Web:      www.OpenFOAM.org                      |
-|    \\/     M anipulation  |                                                 |
-\*---------------------------------------------------------------------------*/
-FoamFile
-{
-    version     2.0;
-    format      ascii;
-    class       volScalarField;
-    location    "0";
-    object      nuSgs;
-}
-// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
-
-dimensions      [0 2 -1 0 0 0 0];
-
-internalField   uniform 0;
-
-boundaryField
-{
-    inlet
-    {
-        type            calculated;
-        value           uniform 0;
-    }
-    outlet
-    {
-        type            calculated;
-        value           uniform 0;
-    }
-    walls
-    {
-        type            nutUSpaldingWallFunction;
-        value           uniform 0;
-    }
-    frontBack
-    {
-        type            nutUSpaldingWallFunction;
-        value           uniform 0;
-    }
-}
-
-
-// ************************************************************************* //
diff --git a/tutorials/multiphase/cavitatingFoam/les/throttle3D/0/p b/tutorials/multiphase/cavitatingFoam/les/throttle3D/0/p
deleted file mode 100644
index 58cc484ff7..0000000000
--- a/tutorials/multiphase/cavitatingFoam/les/throttle3D/0/p
+++ /dev/null
@@ -1,51 +0,0 @@
-/*--------------------------------*- C++ -*----------------------------------*\
-| =========                 |                                                 |
-| \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox           |
-|  \\    /   O peration     | Version:  dev                                   |
-|   \\  /    A nd           | Web:      www.OpenFOAM.org                      |
-|    \\/     M anipulation  |                                                 |
-\*---------------------------------------------------------------------------*/
-FoamFile
-{
-    version     2.0;
-    format      ascii;
-    class       volScalarField;
-    object      p;
-}
-// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
-
-dimensions      [1 -1 -2 0 0];
-
-internalField   uniform 300e5;
-
-boundaryField
-{
-    inlet
-    {
-        type            totalPressure;
-        U               U;
-        phi             phiv;
-        rho             rho;
-        psi             none;
-        gamma           1;
-        p0              uniform 300e5;
-    }
-
-    outlet
-    {
-        type            fixedValue;
-        value           uniform 100e5;
-    }
-
-    walls
-    {
-        type            zeroGradient;
-    }
-
-    frontBack
-    {
-        type            zeroGradient;
-    }
-}
-
-// ************************************************************************* //
diff --git a/tutorials/multiphase/cavitatingFoam/les/throttle3D/0/rho b/tutorials/multiphase/cavitatingFoam/les/throttle3D/0/rho
deleted file mode 100644
index ae5f186cb5..0000000000
--- a/tutorials/multiphase/cavitatingFoam/les/throttle3D/0/rho
+++ /dev/null
@@ -1,46 +0,0 @@
-/*--------------------------------*- C++ -*----------------------------------*\
-| =========                 |                                                 |
-| \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox           |
-|  \\    /   O peration     | Version:  dev                                   |
-|   \\  /    A nd           | Web:      www.OpenFOAM.org                      |
-|    \\/     M anipulation  |                                                 |
-\*---------------------------------------------------------------------------*/
-FoamFile
-{
-    version     2.0;
-    format      ascii;
-    class       volScalarField;
-    object      rho;
-}
-// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
-
-dimensions      [1 -3 0 0 0];
-
-internalField   uniform 845;
-
-boundaryField
-{
-    inlet
-    {
-        type            fixedValue;
-        value           uniform 845;
-    }
-
-    outlet
-    {
-        type            fixedValue;
-        value           uniform 835;
-    }
-
-    walls
-    {
-        type            zeroGradient;
-    }
-
-    frontBack
-    {
-        type            zeroGradient;
-    }
-}
-
-// ************************************************************************* //
diff --git a/tutorials/multiphase/cavitatingFoam/les/throttle3D/Allclean b/tutorials/multiphase/cavitatingFoam/les/throttle3D/Allclean
index b5c25b61f8..06e40c886c 100755
--- a/tutorials/multiphase/cavitatingFoam/les/throttle3D/Allclean
+++ b/tutorials/multiphase/cavitatingFoam/les/throttle3D/Allclean
@@ -6,7 +6,6 @@ cd ${0%/*} || exit 1    # run from this directory
 
 rm -rf constant/polyMesh/sets > /dev/null 2>&1
 rm -rf 0 > /dev/null 2>&1
-cp -r 0.org 0
 rm system/topoSetDict > /dev/null 2>&1
 rm -rf processor[0-9] > /dev/null 2>&1
 cleanCase
diff --git a/tutorials/multiphase/cavitatingFoam/les/throttle3D/constant/transportProperties b/tutorials/multiphase/cavitatingFoam/les/throttle3D/constant/transportProperties
index b37439a124..c5ea29f7a5 100644
--- a/tutorials/multiphase/cavitatingFoam/les/throttle3D/constant/transportProperties
+++ b/tutorials/multiphase/cavitatingFoam/les/throttle3D/constant/transportProperties
@@ -19,14 +19,9 @@ mul             mul [ 1 -1 -1 0 0 ] 0.0065;
 
 muv             muv [ 1 -1 -1 0 0 ] 5.953e-06;
 
-twoPhase
-{
-    transportModel  twoPhase;
-    phase1          phase1;
-    phase2          phase2;
-}
+phases (vapour water);
 
-phase1
+water
 {
     transportModel  Newtonian;
     nu              nu [ 0 2 -1 0 0 0 0 ] 7.831e-06;
@@ -48,7 +43,7 @@ phase1
     }
 }
 
-phase2
+vapour
 {
     transportModel  Newtonian;
     nu              nu [ 0 2 -1 0 0 0 0 ] 4.252e-05;
diff --git a/tutorials/multiphase/cavitatingFoam/les/throttle3D/system/controlDict b/tutorials/multiphase/cavitatingFoam/les/throttle3D/system/controlDict
index e068adbb61..b78ee601a8 100644
--- a/tutorials/multiphase/cavitatingFoam/les/throttle3D/system/controlDict
+++ b/tutorials/multiphase/cavitatingFoam/les/throttle3D/system/controlDict
@@ -73,7 +73,7 @@ functions
                 base        time;
             }
 
-            gamma
+            alpha.vapour
             {
                 mean        on;
                 prime2Mean  off;
diff --git a/tutorials/multiphase/cavitatingFoam/les/throttle/0/gamma b/tutorials/multiphase/cavitatingFoam/ras/throttle/0/alpha.vapour
similarity index 97%
rename from tutorials/multiphase/cavitatingFoam/les/throttle/0/gamma
rename to tutorials/multiphase/cavitatingFoam/ras/throttle/0/alpha.vapour
index 14593028c1..0adb2cfd3a 100644
--- a/tutorials/multiphase/cavitatingFoam/les/throttle/0/gamma
+++ b/tutorials/multiphase/cavitatingFoam/ras/throttle/0/alpha.vapour
@@ -10,7 +10,7 @@ FoamFile
     version     2.0;
     format      ascii;
     class       volScalarField;
-    object      gamma;
+    object      alpha.vapour;
 }
 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
diff --git a/tutorials/multiphase/cavitatingFoam/ras/throttle/constant/transportProperties b/tutorials/multiphase/cavitatingFoam/ras/throttle/constant/transportProperties
index b37439a124..c5ea29f7a5 100644
--- a/tutorials/multiphase/cavitatingFoam/ras/throttle/constant/transportProperties
+++ b/tutorials/multiphase/cavitatingFoam/ras/throttle/constant/transportProperties
@@ -19,14 +19,9 @@ mul             mul [ 1 -1 -1 0 0 ] 0.0065;
 
 muv             muv [ 1 -1 -1 0 0 ] 5.953e-06;
 
-twoPhase
-{
-    transportModel  twoPhase;
-    phase1          phase1;
-    phase2          phase2;
-}
+phases (vapour water);
 
-phase1
+water
 {
     transportModel  Newtonian;
     nu              nu [ 0 2 -1 0 0 0 0 ] 7.831e-06;
@@ -48,7 +43,7 @@ phase1
     }
 }
 
-phase2
+vapour
 {
     transportModel  Newtonian;
     nu              nu [ 0 2 -1 0 0 0 0 ] 4.252e-05;
diff --git a/tutorials/multiphase/compressibleInterFoam/laminar/depthCharge3D/0/alphawater.org b/tutorials/multiphase/compressibleInterFoam/laminar/depthCharge2D/0/alpha.water.org
similarity index 97%
rename from tutorials/multiphase/compressibleInterFoam/laminar/depthCharge3D/0/alphawater.org
rename to tutorials/multiphase/compressibleInterFoam/laminar/depthCharge2D/0/alpha.water.org
index d90b720092..6a1b3d978f 100644
--- a/tutorials/multiphase/compressibleInterFoam/laminar/depthCharge3D/0/alphawater.org
+++ b/tutorials/multiphase/compressibleInterFoam/laminar/depthCharge2D/0/alpha.water.org
@@ -10,7 +10,7 @@ FoamFile
     version     2.0;
     format      ascii;
     class       volScalarField;
-    object      alphawater;
+    object      alpha.water;
 }
 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
diff --git a/tutorials/multiphase/compressibleInterFoam/laminar/depthCharge2D/Allclean b/tutorials/multiphase/compressibleInterFoam/laminar/depthCharge2D/Allclean
index 8821d7e1cc..78f3e40ad8 100755
--- a/tutorials/multiphase/compressibleInterFoam/laminar/depthCharge2D/Allclean
+++ b/tutorials/multiphase/compressibleInterFoam/laminar/depthCharge2D/Allclean
@@ -3,4 +3,4 @@ cd ${0%/*} || exit 1    # run from this directory
 
 foamCleanTutorials cases
 rm -rf processor*
-rm -rf 0/p_rgh.gz 0/p.gz 0/alphawater.gz 0/T*.gz
+rm -rf 0/p_rgh.gz 0/p.gz 0/alpha.water.gz 0/T*.gz
diff --git a/tutorials/multiphase/compressibleInterFoam/laminar/depthCharge2D/Allrun b/tutorials/multiphase/compressibleInterFoam/laminar/depthCharge2D/Allrun
index ac803d715f..5d2fadf412 100755
--- a/tutorials/multiphase/compressibleInterFoam/laminar/depthCharge2D/Allrun
+++ b/tutorials/multiphase/compressibleInterFoam/laminar/depthCharge2D/Allrun
@@ -8,7 +8,7 @@ cd ${0%/*} || exit 1    # run from this directory
 application=`getApplication`
 
 runApplication blockMesh
-cp 0/alphawater.org 0/alphawater
+cp 0/alpha.water.org 0/alpha.water
 cp 0/p_rgh.org 0/p_rgh
 cp 0/p.org 0/p
 cp 0/T.org 0/T
diff --git a/tutorials/multiphase/compressibleInterFoam/laminar/depthCharge2D/constant/thermophysicalPropertiesair b/tutorials/multiphase/compressibleInterFoam/laminar/depthCharge2D/constant/thermophysicalProperties.air
similarity index 100%
rename from tutorials/multiphase/compressibleInterFoam/laminar/depthCharge2D/constant/thermophysicalPropertiesair
rename to tutorials/multiphase/compressibleInterFoam/laminar/depthCharge2D/constant/thermophysicalProperties.air
diff --git a/tutorials/multiphase/compressibleInterFoam/laminar/depthCharge2D/constant/thermophysicalPropertieswater b/tutorials/multiphase/compressibleInterFoam/laminar/depthCharge2D/constant/thermophysicalProperties.water
similarity index 100%
rename from tutorials/multiphase/compressibleInterFoam/laminar/depthCharge2D/constant/thermophysicalPropertieswater
rename to tutorials/multiphase/compressibleInterFoam/laminar/depthCharge2D/constant/thermophysicalProperties.water
diff --git a/tutorials/multiphase/compressibleInterFoam/laminar/depthCharge2D/system/fvSchemes b/tutorials/multiphase/compressibleInterFoam/laminar/depthCharge2D/system/fvSchemes
index 3582eeafa1..b44890f389 100644
--- a/tutorials/multiphase/compressibleInterFoam/laminar/depthCharge2D/system/fvSchemes
+++ b/tutorials/multiphase/compressibleInterFoam/laminar/depthCharge2D/system/fvSchemes
@@ -31,8 +31,8 @@ divSchemes
     div(phirb,alpha) Gauss interfaceCompression 1;
 
     div(rho*phi,U)  Gauss upwind;
-    div(phi,thermo:rhowater) Gauss upwind;
-    div(phi,thermo:rhoair) Gauss upwind;
+    div(phi,thermo:rho.water) Gauss upwind;
+    div(phi,thermo:rho.air) Gauss upwind;
     div(rho*phi,T)  Gauss upwind;
     div(rho*phi,K)  Gauss upwind;
     div(phi,p)      Gauss upwind;
diff --git a/tutorials/multiphase/compressibleInterFoam/laminar/depthCharge2D/system/fvSolution b/tutorials/multiphase/compressibleInterFoam/laminar/depthCharge2D/system/fvSolution
index 4e1aa83dc7..7a04bf3624 100644
--- a/tutorials/multiphase/compressibleInterFoam/laminar/depthCharge2D/system/fvSolution
+++ b/tutorials/multiphase/compressibleInterFoam/laminar/depthCharge2D/system/fvSolution
@@ -17,7 +17,7 @@ FoamFile
 
 solvers
 {
-    alphawater
+    alpha.water
     {
         nAlphaCorr      1;
         nAlphaSubCycles 1;
diff --git a/tutorials/multiphase/compressibleInterFoam/laminar/depthCharge2D/system/setFieldsDict b/tutorials/multiphase/compressibleInterFoam/laminar/depthCharge2D/system/setFieldsDict
index f312b4e972..87fd237577 100644
--- a/tutorials/multiphase/compressibleInterFoam/laminar/depthCharge2D/system/setFieldsDict
+++ b/tutorials/multiphase/compressibleInterFoam/laminar/depthCharge2D/system/setFieldsDict
@@ -17,7 +17,7 @@ FoamFile
 
 defaultFieldValues
 (
-    volScalarFieldValue alphawater 1
+    volScalarFieldValue alpha.water 1
     volScalarFieldValue p_rgh 1e5
     volScalarFieldValue p 1e5
     volScalarFieldValue T 300
@@ -31,7 +31,7 @@ regions
         radius 0.1;
         fieldValues
         (
-            volScalarFieldValue alphawater 0
+            volScalarFieldValue alpha.water 0
             volScalarFieldValue p_rgh 1e6
             volScalarFieldValue p 1e6
             volScalarFieldValue T 578
@@ -42,7 +42,7 @@ regions
         box (-10 1 -1) (10 10 1);
         fieldValues
         (
-            volScalarFieldValue alphawater 0
+            volScalarFieldValue alpha.water 0
         );
     }
 );
diff --git a/tutorials/multiphase/compressibleInterFoam/laminar/depthCharge3D/0/T.air.gz b/tutorials/multiphase/compressibleInterFoam/laminar/depthCharge3D/0/T.air.gz
new file mode 100644
index 0000000000..df712a5aac
Binary files /dev/null and b/tutorials/multiphase/compressibleInterFoam/laminar/depthCharge3D/0/T.air.gz differ
diff --git a/tutorials/multiphase/compressibleInterFoam/laminar/depthCharge3D/0/T.water.gz b/tutorials/multiphase/compressibleInterFoam/laminar/depthCharge3D/0/T.water.gz
new file mode 100644
index 0000000000..e8108f6bab
Binary files /dev/null and b/tutorials/multiphase/compressibleInterFoam/laminar/depthCharge3D/0/T.water.gz differ
diff --git a/tutorials/multiphase/compressibleInterFoam/laminar/depthCharge2D/0/alphawater.org b/tutorials/multiphase/compressibleInterFoam/laminar/depthCharge3D/0/alpha.water.org
similarity index 100%
rename from tutorials/multiphase/compressibleInterFoam/laminar/depthCharge2D/0/alphawater.org
rename to tutorials/multiphase/compressibleInterFoam/laminar/depthCharge3D/0/alpha.water.org
diff --git a/tutorials/multiphase/compressibleInterFoam/laminar/depthCharge3D/Allclean b/tutorials/multiphase/compressibleInterFoam/laminar/depthCharge3D/Allclean
index 3ec07f62c5..f33fd89a62 100755
--- a/tutorials/multiphase/compressibleInterFoam/laminar/depthCharge3D/Allclean
+++ b/tutorials/multiphase/compressibleInterFoam/laminar/depthCharge3D/Allclean
@@ -3,6 +3,6 @@ cd ${0%/*} || exit 1    # run from this directory
 
 foamCleanTutorials cases
 rm -rf processor*
-rm -rf 0/p_rgh.gz 0/p.gz 0/alphawater.gz 0/T.gz
+rm -rf 0/p_rgh.gz 0/p.gz 0/alpha.water.gz 0/T.gz
 
 # ----------------------------------------------------------------- end-of-file
diff --git a/tutorials/multiphase/compressibleInterFoam/laminar/depthCharge3D/Allrun b/tutorials/multiphase/compressibleInterFoam/laminar/depthCharge3D/Allrun
index 11b84a3251..33c1da4fd3 100755
--- a/tutorials/multiphase/compressibleInterFoam/laminar/depthCharge3D/Allrun
+++ b/tutorials/multiphase/compressibleInterFoam/laminar/depthCharge3D/Allrun
@@ -8,7 +8,7 @@ cd ${0%/*} || exit 1    # run from this directory
 application=`getApplication`
 
 runApplication blockMesh
-cp 0/alphawater.org 0/alphawater
+cp 0/alpha.water.org 0/alpha.water
 cp 0/p_rgh.org 0/p_rgh
 cp 0/p.org 0/p
 cp 0/T.org 0/T
diff --git a/tutorials/multiphase/compressibleInterFoam/laminar/depthCharge3D/constant/thermophysicalPropertiesair b/tutorials/multiphase/compressibleInterFoam/laminar/depthCharge3D/constant/thermophysicalProperties.air
similarity index 100%
rename from tutorials/multiphase/compressibleInterFoam/laminar/depthCharge3D/constant/thermophysicalPropertiesair
rename to tutorials/multiphase/compressibleInterFoam/laminar/depthCharge3D/constant/thermophysicalProperties.air
diff --git a/tutorials/multiphase/compressibleInterFoam/laminar/depthCharge3D/constant/thermophysicalPropertieswater b/tutorials/multiphase/compressibleInterFoam/laminar/depthCharge3D/constant/thermophysicalProperties.water
similarity index 100%
rename from tutorials/multiphase/compressibleInterFoam/laminar/depthCharge3D/constant/thermophysicalPropertieswater
rename to tutorials/multiphase/compressibleInterFoam/laminar/depthCharge3D/constant/thermophysicalProperties.water
diff --git a/tutorials/multiphase/compressibleInterFoam/laminar/depthCharge3D/system/fvSchemes b/tutorials/multiphase/compressibleInterFoam/laminar/depthCharge3D/system/fvSchemes
index 3582eeafa1..b44890f389 100644
--- a/tutorials/multiphase/compressibleInterFoam/laminar/depthCharge3D/system/fvSchemes
+++ b/tutorials/multiphase/compressibleInterFoam/laminar/depthCharge3D/system/fvSchemes
@@ -31,8 +31,8 @@ divSchemes
     div(phirb,alpha) Gauss interfaceCompression 1;
 
     div(rho*phi,U)  Gauss upwind;
-    div(phi,thermo:rhowater) Gauss upwind;
-    div(phi,thermo:rhoair) Gauss upwind;
+    div(phi,thermo:rho.water) Gauss upwind;
+    div(phi,thermo:rho.air) Gauss upwind;
     div(rho*phi,T)  Gauss upwind;
     div(rho*phi,K)  Gauss upwind;
     div(phi,p)      Gauss upwind;
diff --git a/tutorials/multiphase/compressibleInterFoam/laminar/depthCharge3D/system/fvSolution b/tutorials/multiphase/compressibleInterFoam/laminar/depthCharge3D/system/fvSolution
index 4e1aa83dc7..7a04bf3624 100644
--- a/tutorials/multiphase/compressibleInterFoam/laminar/depthCharge3D/system/fvSolution
+++ b/tutorials/multiphase/compressibleInterFoam/laminar/depthCharge3D/system/fvSolution
@@ -17,7 +17,7 @@ FoamFile
 
 solvers
 {
-    alphawater
+    alpha.water
     {
         nAlphaCorr      1;
         nAlphaSubCycles 1;
diff --git a/tutorials/multiphase/compressibleInterFoam/laminar/depthCharge3D/system/setFieldsDict b/tutorials/multiphase/compressibleInterFoam/laminar/depthCharge3D/system/setFieldsDict
index dc90a362c0..2103e99c13 100644
--- a/tutorials/multiphase/compressibleInterFoam/laminar/depthCharge3D/system/setFieldsDict
+++ b/tutorials/multiphase/compressibleInterFoam/laminar/depthCharge3D/system/setFieldsDict
@@ -17,7 +17,7 @@ FoamFile
 
 defaultFieldValues
 (
-    volScalarFieldValue alphawater 1
+    volScalarFieldValue alpha.water 1
     volScalarFieldValue p_rgh 1e5
     volScalarFieldValue p 1e5
     volScalarFieldValue T 300
@@ -31,7 +31,7 @@ regions
         radius 0.1;
         fieldValues
         (
-            volScalarFieldValue alphawater 0
+            volScalarFieldValue alpha.water 0
             volScalarFieldValue p_rgh 1e6
             volScalarFieldValue p 1e6
             volScalarFieldValue T 578
@@ -42,7 +42,7 @@ regions
         box (-10 1 -1) (10 10 1);
         fieldValues
         (
-            volScalarFieldValue alphawater 0
+            volScalarFieldValue alpha.water 0
         );
     }
 );
diff --git a/tutorials/multiphase/interDyMFoam/ras/damBreakWithObstacle/0.org/alpha1.org b/tutorials/multiphase/interDyMFoam/ras/damBreakWithObstacle/0.org/alpha.water
similarity index 97%
rename from tutorials/multiphase/interDyMFoam/ras/damBreakWithObstacle/0.org/alpha1.org
rename to tutorials/multiphase/interDyMFoam/ras/damBreakWithObstacle/0.org/alpha.water
index f1ad15f1c2..e0eda6f9eb 100644
--- a/tutorials/multiphase/interDyMFoam/ras/damBreakWithObstacle/0.org/alpha1.org
+++ b/tutorials/multiphase/interDyMFoam/ras/damBreakWithObstacle/0.org/alpha.water
@@ -10,7 +10,7 @@ FoamFile
     version     2.0;
     format      ascii;
     class       volScalarField;
-    object      alpha1;
+    object      alpha.water;
 }
 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
diff --git a/tutorials/multiphase/interDyMFoam/ras/damBreakWithObstacle/0.org/alpha1 b/tutorials/multiphase/interDyMFoam/ras/damBreakWithObstacle/0.org/alpha.water.org
similarity index 97%
rename from tutorials/multiphase/interDyMFoam/ras/damBreakWithObstacle/0.org/alpha1
rename to tutorials/multiphase/interDyMFoam/ras/damBreakWithObstacle/0.org/alpha.water.org
index f1ad15f1c2..e0eda6f9eb 100644
--- a/tutorials/multiphase/interDyMFoam/ras/damBreakWithObstacle/0.org/alpha1
+++ b/tutorials/multiphase/interDyMFoam/ras/damBreakWithObstacle/0.org/alpha.water.org
@@ -10,7 +10,7 @@ FoamFile
     version     2.0;
     format      ascii;
     class       volScalarField;
-    object      alpha1;
+    object      alpha.water;
 }
 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
diff --git a/tutorials/multiphase/interDyMFoam/ras/damBreakWithObstacle/constant/dynamicMeshDict b/tutorials/multiphase/interDyMFoam/ras/damBreakWithObstacle/constant/dynamicMeshDict
index 64223ec7b8..f9baf8b3e1 100644
--- a/tutorials/multiphase/interDyMFoam/ras/damBreakWithObstacle/constant/dynamicMeshDict
+++ b/tutorials/multiphase/interDyMFoam/ras/damBreakWithObstacle/constant/dynamicMeshDict
@@ -22,7 +22,7 @@ dynamicRefineFvMeshCoeffs
     // How often to refine
     refineInterval  1;
     // Field to be refinement on
-    field           alpha1;
+    field           alpha.water;
     // Refine field inbetween lower..upper
     lowerRefineLevel 0.001;
     upperRefineLevel 0.999;
diff --git a/tutorials/multiphase/interDyMFoam/ras/damBreakWithObstacle/constant/transportProperties b/tutorials/multiphase/interDyMFoam/ras/damBreakWithObstacle/constant/transportProperties
index ba430bce29..81106f5ea4 100644
--- a/tutorials/multiphase/interDyMFoam/ras/damBreakWithObstacle/constant/transportProperties
+++ b/tutorials/multiphase/interDyMFoam/ras/damBreakWithObstacle/constant/transportProperties
@@ -15,7 +15,9 @@ FoamFile
 }
 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
-phase1
+phases (water air);
+
+water
 {
     transportModel  Newtonian;
     nu              nu [ 0 2 -1 0 0 0 0 ] 1e-06;
@@ -37,7 +39,7 @@ phase1
     }
 }
 
-phase2
+air
 {
     transportModel  Newtonian;
     nu              nu [ 0 2 -1 0 0 0 0 ] 1.48e-05;
diff --git a/tutorials/multiphase/interDyMFoam/ras/damBreakWithObstacle/system/fvSolution b/tutorials/multiphase/interDyMFoam/ras/damBreakWithObstacle/system/fvSolution
index 63d54a7c3d..f47969d4bf 100644
--- a/tutorials/multiphase/interDyMFoam/ras/damBreakWithObstacle/system/fvSolution
+++ b/tutorials/multiphase/interDyMFoam/ras/damBreakWithObstacle/system/fvSolution
@@ -17,7 +17,7 @@ FoamFile
 
 solvers
 {
-    alpha1
+    alpha.water
     {
         nAlphaCorr      1;
         nAlphaSubCycles 3;
diff --git a/tutorials/multiphase/interDyMFoam/ras/damBreakWithObstacle/system/setFieldsDict b/tutorials/multiphase/interDyMFoam/ras/damBreakWithObstacle/system/setFieldsDict
index 0af0cd2da7..47ad156601 100644
--- a/tutorials/multiphase/interDyMFoam/ras/damBreakWithObstacle/system/setFieldsDict
+++ b/tutorials/multiphase/interDyMFoam/ras/damBreakWithObstacle/system/setFieldsDict
@@ -17,7 +17,7 @@ FoamFile
 
 defaultFieldValues
 (
-    volScalarFieldValue alpha1 0
+    volScalarFieldValue alpha.water 0
     volVectorFieldValue U ( 0 0 0 )
 );
 
@@ -28,7 +28,7 @@ regions
         box ( 0 0 0 ) ( 0.6 0.1875 0.75 );
         fieldValues
         (
-            volScalarFieldValue alpha1 1
+            volScalarFieldValue alpha.water 1
         );
     }
  );
diff --git a/tutorials/multiphase/interDyMFoam/ras/floatingObject/0.org/alpha1 b/tutorials/multiphase/interDyMFoam/ras/floatingObject/0.org/alpha.water
similarity index 97%
rename from tutorials/multiphase/interDyMFoam/ras/floatingObject/0.org/alpha1
rename to tutorials/multiphase/interDyMFoam/ras/floatingObject/0.org/alpha.water
index c3b0586036..e09e2739bd 100644
--- a/tutorials/multiphase/interDyMFoam/ras/floatingObject/0.org/alpha1
+++ b/tutorials/multiphase/interDyMFoam/ras/floatingObject/0.org/alpha.water
@@ -11,7 +11,7 @@ FoamFile
     format      ascii;
     class       volScalarField;
     location    "0";
-    object      alpha1;
+    object      alpha.water;
 }
 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
diff --git a/tutorials/multiphase/interDyMFoam/ras/floatingObject/constant/transportProperties b/tutorials/multiphase/interDyMFoam/ras/floatingObject/constant/transportProperties
index 02287f422b..3729fc7648 100644
--- a/tutorials/multiphase/interDyMFoam/ras/floatingObject/constant/transportProperties
+++ b/tutorials/multiphase/interDyMFoam/ras/floatingObject/constant/transportProperties
@@ -15,14 +15,16 @@ FoamFile
 }
 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
-phase1
+phases (water air);
+
+water
 {
     transportModel  Newtonian;
     nu              nu [ 0 2 -1 0 0 0 0 ] 1e-06;
     rho             rho [ 1 -3 0 0 0 0 0 ] 998.2;
 }
 
-phase2
+air
 {
     transportModel  Newtonian;
     nu              nu [ 0 2 -1 0 0 0 0 ] 1.48e-05;
diff --git a/tutorials/multiphase/interDyMFoam/ras/floatingObject/system/fvSolution b/tutorials/multiphase/interDyMFoam/ras/floatingObject/system/fvSolution
index 1202013c58..d3c114226b 100644
--- a/tutorials/multiphase/interDyMFoam/ras/floatingObject/system/fvSolution
+++ b/tutorials/multiphase/interDyMFoam/ras/floatingObject/system/fvSolution
@@ -29,7 +29,7 @@ solvers
         mergeLevels     1;
     }
 
-    alpha1
+    alpha.water
     {
         nAlphaCorr      1;
         nAlphaSubCycles 3;
diff --git a/tutorials/multiphase/interDyMFoam/ras/floatingObject/system/setFieldsDict b/tutorials/multiphase/interDyMFoam/ras/floatingObject/system/setFieldsDict
index 22fcdc05b5..2506a693af 100644
--- a/tutorials/multiphase/interDyMFoam/ras/floatingObject/system/setFieldsDict
+++ b/tutorials/multiphase/interDyMFoam/ras/floatingObject/system/setFieldsDict
@@ -17,7 +17,7 @@ FoamFile
 
 defaultFieldValues
 (
-    volScalarFieldValue alpha1 0
+    volScalarFieldValue alpha.water 0
 );
 
 regions
@@ -25,13 +25,13 @@ regions
     boxToCell
     {
         box ( -100 -100 -100 ) ( 100 100 0.5368 );
-        fieldValues ( volScalarFieldValue alpha1 1 );
+        fieldValues ( volScalarFieldValue alpha.water 1 );
     }
 
     boxToCell
     {
         box ( 0.7 0.8 -100 ) ( 100 100 0.65 );
-        fieldValues ( volScalarFieldValue alpha1 1 );
+        fieldValues ( volScalarFieldValue alpha.water 1 );
     }
 );
 
diff --git a/tutorials/multiphase/interDyMFoam/ras/mixerVesselAMI/0.org/alpha1 b/tutorials/multiphase/interDyMFoam/ras/mixerVesselAMI/0.org/alpha.water
similarity index 97%
rename from tutorials/multiphase/interDyMFoam/ras/mixerVesselAMI/0.org/alpha1
rename to tutorials/multiphase/interDyMFoam/ras/mixerVesselAMI/0.org/alpha.water
index cee67a8884..17678343e2 100644
--- a/tutorials/multiphase/interDyMFoam/ras/mixerVesselAMI/0.org/alpha1
+++ b/tutorials/multiphase/interDyMFoam/ras/mixerVesselAMI/0.org/alpha.water
@@ -10,7 +10,7 @@ FoamFile
     version     2.0;
     format      ascii;
     class       volScalarField;
-    object      alpha1;
+    object      alpha.water;
 }
 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
diff --git a/tutorials/multiphase/interDyMFoam/ras/mixerVesselAMI/constant/transportProperties b/tutorials/multiphase/interDyMFoam/ras/mixerVesselAMI/constant/transportProperties
index c74dee04a7..0d7bbe9e60 100644
--- a/tutorials/multiphase/interDyMFoam/ras/mixerVesselAMI/constant/transportProperties
+++ b/tutorials/multiphase/interDyMFoam/ras/mixerVesselAMI/constant/transportProperties
@@ -15,21 +15,16 @@ FoamFile
 }
 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
-twoPhase
-{
-    transportModel  twoPhase;
-    phase1          phase1;
-    phase2          phase2;
-}
+phases (water air);
 
-phase1
+water
 {
     transportModel  Newtonian;
     nu              nu [ 0 2 -1 0 0 0 0 ] 1e-06;
     rho             rho [ 1 -3 0 0 0 0 0 ] 300;
 }
 
-phase2
+air
 {
     transportModel  Newtonian;
     nu              nu [ 0 2 -1 0 0 0 0 ] 1e-6;
diff --git a/tutorials/multiphase/interDyMFoam/ras/mixerVesselAMI/system/fvSolution b/tutorials/multiphase/interDyMFoam/ras/mixerVesselAMI/system/fvSolution
index 7e8fa0fb1a..946d84ed62 100644
--- a/tutorials/multiphase/interDyMFoam/ras/mixerVesselAMI/system/fvSolution
+++ b/tutorials/multiphase/interDyMFoam/ras/mixerVesselAMI/system/fvSolution
@@ -17,7 +17,7 @@ FoamFile
 
 solvers
 {
-    alpha1
+    alpha.water
     {
         nAlphaCorr          1;
         nAlphaSubCycles     2;
diff --git a/tutorials/multiphase/interDyMFoam/ras/mixerVesselAMI/system/setFieldsDict b/tutorials/multiphase/interDyMFoam/ras/mixerVesselAMI/system/setFieldsDict
index 7415f2fc76..defca08b47 100644
--- a/tutorials/multiphase/interDyMFoam/ras/mixerVesselAMI/system/setFieldsDict
+++ b/tutorials/multiphase/interDyMFoam/ras/mixerVesselAMI/system/setFieldsDict
@@ -17,7 +17,7 @@ FoamFile
 
 defaultFieldValues
 (
-    volScalarFieldValue alpha1 1
+    volScalarFieldValue alpha.water 1
 );
 
 regions
@@ -27,7 +27,7 @@ regions
         box (-4 -4 -1) (4 4 0.74);
         fieldValues
         (
-            volScalarFieldValue alpha1 0
+            volScalarFieldValue alpha.water 0
         );
     }
 );
diff --git a/tutorials/multiphase/interDyMFoam/ras/sloshingTank2D/0/alpha1.org b/tutorials/multiphase/interDyMFoam/ras/sloshingTank2D/0/alpha.water.org
similarity index 97%
rename from tutorials/multiphase/interDyMFoam/ras/sloshingTank2D/0/alpha1.org
rename to tutorials/multiphase/interDyMFoam/ras/sloshingTank2D/0/alpha.water.org
index 452b5dd51c..70366ec29f 100644
--- a/tutorials/multiphase/interDyMFoam/ras/sloshingTank2D/0/alpha1.org
+++ b/tutorials/multiphase/interDyMFoam/ras/sloshingTank2D/0/alpha.water.org
@@ -10,7 +10,7 @@ FoamFile
     version     2.0;
     format      ascii;
     class       volScalarField;
-    object      alpha1;
+    object      alpha.water;
 }
 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
diff --git a/tutorials/multiphase/interDyMFoam/ras/sloshingTank2D/Allclean b/tutorials/multiphase/interDyMFoam/ras/sloshingTank2D/Allclean
index 4ee30b518c..faacf01f18 100755
--- a/tutorials/multiphase/interDyMFoam/ras/sloshingTank2D/Allclean
+++ b/tutorials/multiphase/interDyMFoam/ras/sloshingTank2D/Allclean
@@ -2,6 +2,6 @@
 cd ${0%/*} || exit 1    # run from this directory
 
 foamCleanTutorials cases
-rm -rf 0/alpha1 0/alpha1.gz probes wallPressure pRefProbe
+rm -rf 0/alpha.water 0/alpha.water.gz probes wallPressure pRefProbe
 
 # ----------------------------------------------------------------- end-of-file
diff --git a/tutorials/multiphase/interDyMFoam/ras/sloshingTank2D/Allrun b/tutorials/multiphase/interDyMFoam/ras/sloshingTank2D/Allrun
index 3b8cb649c2..7ea0ac7744 100755
--- a/tutorials/multiphase/interDyMFoam/ras/sloshingTank2D/Allrun
+++ b/tutorials/multiphase/interDyMFoam/ras/sloshingTank2D/Allrun
@@ -6,7 +6,7 @@ cd ${0%/*} || exit 1    # run from this directory
 
 m4 constant/polyMesh/blockMeshDict.m4 > constant/polyMesh/blockMeshDict
 runApplication blockMesh
-cp 0/alpha1.org 0/alpha1
+cp 0/alpha.water.org 0/alpha.water
 runApplication setFields
 runApplication `getApplication`
 
diff --git a/tutorials/multiphase/interDyMFoam/ras/sloshingTank2D/constant/transportProperties b/tutorials/multiphase/interDyMFoam/ras/sloshingTank2D/constant/transportProperties
index 02287f422b..3729fc7648 100644
--- a/tutorials/multiphase/interDyMFoam/ras/sloshingTank2D/constant/transportProperties
+++ b/tutorials/multiphase/interDyMFoam/ras/sloshingTank2D/constant/transportProperties
@@ -15,14 +15,16 @@ FoamFile
 }
 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
-phase1
+phases (water air);
+
+water
 {
     transportModel  Newtonian;
     nu              nu [ 0 2 -1 0 0 0 0 ] 1e-06;
     rho             rho [ 1 -3 0 0 0 0 0 ] 998.2;
 }
 
-phase2
+air
 {
     transportModel  Newtonian;
     nu              nu [ 0 2 -1 0 0 0 0 ] 1.48e-05;
diff --git a/tutorials/multiphase/interDyMFoam/ras/sloshingTank2D/system/fvSolution b/tutorials/multiphase/interDyMFoam/ras/sloshingTank2D/system/fvSolution
index 696ba9cc79..0f9b300499 100644
--- a/tutorials/multiphase/interDyMFoam/ras/sloshingTank2D/system/fvSolution
+++ b/tutorials/multiphase/interDyMFoam/ras/sloshingTank2D/system/fvSolution
@@ -17,7 +17,7 @@ FoamFile
 
 solvers
 {
-    alpha1
+    alpha.water
     {
         nAlphaCorr      1;
         nAlphaSubCycles 3;
diff --git a/tutorials/multiphase/interDyMFoam/ras/sloshingTank2D/system/setFieldsDict b/tutorials/multiphase/interDyMFoam/ras/sloshingTank2D/system/setFieldsDict
index ec8d1717d5..410a0a6f10 100644
--- a/tutorials/multiphase/interDyMFoam/ras/sloshingTank2D/system/setFieldsDict
+++ b/tutorials/multiphase/interDyMFoam/ras/sloshingTank2D/system/setFieldsDict
@@ -17,7 +17,7 @@ FoamFile
 
 defaultFieldValues
 (
-    volScalarFieldValue alpha1 0
+    volScalarFieldValue alpha.water 0
 );
 
 regions
@@ -27,7 +27,7 @@ regions
         box ( -100 -100 -100 ) ( 100 100 0 );
         fieldValues
         (
-            volScalarFieldValue alpha1 1
+            volScalarFieldValue alpha.water 1
         );
     }
 );
diff --git a/tutorials/multiphase/interDyMFoam/ras/sloshingTank2D3DoF/0/alpha1.org b/tutorials/multiphase/interDyMFoam/ras/sloshingTank2D3DoF/0/alpha.water.org
similarity index 97%
rename from tutorials/multiphase/interDyMFoam/ras/sloshingTank2D3DoF/0/alpha1.org
rename to tutorials/multiphase/interDyMFoam/ras/sloshingTank2D3DoF/0/alpha.water.org
index 452b5dd51c..70366ec29f 100644
--- a/tutorials/multiphase/interDyMFoam/ras/sloshingTank2D3DoF/0/alpha1.org
+++ b/tutorials/multiphase/interDyMFoam/ras/sloshingTank2D3DoF/0/alpha.water.org
@@ -10,7 +10,7 @@ FoamFile
     version     2.0;
     format      ascii;
     class       volScalarField;
-    object      alpha1;
+    object      alpha.water;
 }
 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
diff --git a/tutorials/multiphase/interDyMFoam/ras/sloshingTank2D3DoF/Allclean b/tutorials/multiphase/interDyMFoam/ras/sloshingTank2D3DoF/Allclean
index 4ee30b518c..faacf01f18 100755
--- a/tutorials/multiphase/interDyMFoam/ras/sloshingTank2D3DoF/Allclean
+++ b/tutorials/multiphase/interDyMFoam/ras/sloshingTank2D3DoF/Allclean
@@ -2,6 +2,6 @@
 cd ${0%/*} || exit 1    # run from this directory
 
 foamCleanTutorials cases
-rm -rf 0/alpha1 0/alpha1.gz probes wallPressure pRefProbe
+rm -rf 0/alpha.water 0/alpha.water.gz probes wallPressure pRefProbe
 
 # ----------------------------------------------------------------- end-of-file
diff --git a/tutorials/multiphase/interDyMFoam/ras/sloshingTank2D3DoF/Allrun b/tutorials/multiphase/interDyMFoam/ras/sloshingTank2D3DoF/Allrun
index 3b8cb649c2..7ea0ac7744 100755
--- a/tutorials/multiphase/interDyMFoam/ras/sloshingTank2D3DoF/Allrun
+++ b/tutorials/multiphase/interDyMFoam/ras/sloshingTank2D3DoF/Allrun
@@ -6,7 +6,7 @@ cd ${0%/*} || exit 1    # run from this directory
 
 m4 constant/polyMesh/blockMeshDict.m4 > constant/polyMesh/blockMeshDict
 runApplication blockMesh
-cp 0/alpha1.org 0/alpha1
+cp 0/alpha.water.org 0/alpha.water
 runApplication setFields
 runApplication `getApplication`
 
diff --git a/tutorials/multiphase/interDyMFoam/ras/sloshingTank2D3DoF/constant/transportProperties b/tutorials/multiphase/interDyMFoam/ras/sloshingTank2D3DoF/constant/transportProperties
index 02287f422b..3729fc7648 100644
--- a/tutorials/multiphase/interDyMFoam/ras/sloshingTank2D3DoF/constant/transportProperties
+++ b/tutorials/multiphase/interDyMFoam/ras/sloshingTank2D3DoF/constant/transportProperties
@@ -15,14 +15,16 @@ FoamFile
 }
 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
-phase1
+phases (water air);
+
+water
 {
     transportModel  Newtonian;
     nu              nu [ 0 2 -1 0 0 0 0 ] 1e-06;
     rho             rho [ 1 -3 0 0 0 0 0 ] 998.2;
 }
 
-phase2
+air
 {
     transportModel  Newtonian;
     nu              nu [ 0 2 -1 0 0 0 0 ] 1.48e-05;
diff --git a/tutorials/multiphase/interDyMFoam/ras/sloshingTank2D3DoF/system/fvSolution b/tutorials/multiphase/interDyMFoam/ras/sloshingTank2D3DoF/system/fvSolution
index 696ba9cc79..0f9b300499 100644
--- a/tutorials/multiphase/interDyMFoam/ras/sloshingTank2D3DoF/system/fvSolution
+++ b/tutorials/multiphase/interDyMFoam/ras/sloshingTank2D3DoF/system/fvSolution
@@ -17,7 +17,7 @@ FoamFile
 
 solvers
 {
-    alpha1
+    alpha.water
     {
         nAlphaCorr      1;
         nAlphaSubCycles 3;
diff --git a/tutorials/multiphase/interDyMFoam/ras/sloshingTank2D3DoF/system/setFieldsDict b/tutorials/multiphase/interDyMFoam/ras/sloshingTank2D3DoF/system/setFieldsDict
index ec8d1717d5..410a0a6f10 100644
--- a/tutorials/multiphase/interDyMFoam/ras/sloshingTank2D3DoF/system/setFieldsDict
+++ b/tutorials/multiphase/interDyMFoam/ras/sloshingTank2D3DoF/system/setFieldsDict
@@ -17,7 +17,7 @@ FoamFile
 
 defaultFieldValues
 (
-    volScalarFieldValue alpha1 0
+    volScalarFieldValue alpha.water 0
 );
 
 regions
@@ -27,7 +27,7 @@ regions
         box ( -100 -100 -100 ) ( 100 100 0 );
         fieldValues
         (
-            volScalarFieldValue alpha1 1
+            volScalarFieldValue alpha.water 1
         );
     }
 );
diff --git a/tutorials/multiphase/interDyMFoam/ras/testTubeMixer/0/alpha1.org b/tutorials/multiphase/interDyMFoam/ras/sloshingTank3D/0/alpha.water.org
similarity index 97%
rename from tutorials/multiphase/interDyMFoam/ras/testTubeMixer/0/alpha1.org
rename to tutorials/multiphase/interDyMFoam/ras/sloshingTank3D/0/alpha.water.org
index f40309af2e..bdebcf1ab4 100644
--- a/tutorials/multiphase/interDyMFoam/ras/testTubeMixer/0/alpha1.org
+++ b/tutorials/multiphase/interDyMFoam/ras/sloshingTank3D/0/alpha.water.org
@@ -10,7 +10,7 @@ FoamFile
     version     2.0;
     format      ascii;
     class       volScalarField;
-    object      alpha1;
+    object      alpha.water;
 }
 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
diff --git a/tutorials/multiphase/interDyMFoam/ras/sloshingTank3D/Allclean b/tutorials/multiphase/interDyMFoam/ras/sloshingTank3D/Allclean
index 4ee30b518c..faacf01f18 100755
--- a/tutorials/multiphase/interDyMFoam/ras/sloshingTank3D/Allclean
+++ b/tutorials/multiphase/interDyMFoam/ras/sloshingTank3D/Allclean
@@ -2,6 +2,6 @@
 cd ${0%/*} || exit 1    # run from this directory
 
 foamCleanTutorials cases
-rm -rf 0/alpha1 0/alpha1.gz probes wallPressure pRefProbe
+rm -rf 0/alpha.water 0/alpha.water.gz probes wallPressure pRefProbe
 
 # ----------------------------------------------------------------- end-of-file
diff --git a/tutorials/multiphase/interDyMFoam/ras/sloshingTank3D/Allrun b/tutorials/multiphase/interDyMFoam/ras/sloshingTank3D/Allrun
index 3b8cb649c2..7ea0ac7744 100755
--- a/tutorials/multiphase/interDyMFoam/ras/sloshingTank3D/Allrun
+++ b/tutorials/multiphase/interDyMFoam/ras/sloshingTank3D/Allrun
@@ -6,7 +6,7 @@ cd ${0%/*} || exit 1    # run from this directory
 
 m4 constant/polyMesh/blockMeshDict.m4 > constant/polyMesh/blockMeshDict
 runApplication blockMesh
-cp 0/alpha1.org 0/alpha1
+cp 0/alpha.water.org 0/alpha.water
 runApplication setFields
 runApplication `getApplication`
 
diff --git a/tutorials/multiphase/interDyMFoam/ras/sloshingTank3D/constant/transportProperties b/tutorials/multiphase/interDyMFoam/ras/sloshingTank3D/constant/transportProperties
index 02287f422b..3729fc7648 100644
--- a/tutorials/multiphase/interDyMFoam/ras/sloshingTank3D/constant/transportProperties
+++ b/tutorials/multiphase/interDyMFoam/ras/sloshingTank3D/constant/transportProperties
@@ -15,14 +15,16 @@ FoamFile
 }
 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
-phase1
+phases (water air);
+
+water
 {
     transportModel  Newtonian;
     nu              nu [ 0 2 -1 0 0 0 0 ] 1e-06;
     rho             rho [ 1 -3 0 0 0 0 0 ] 998.2;
 }
 
-phase2
+air
 {
     transportModel  Newtonian;
     nu              nu [ 0 2 -1 0 0 0 0 ] 1.48e-05;
diff --git a/tutorials/multiphase/interDyMFoam/ras/sloshingTank3D/system/fvSolution b/tutorials/multiphase/interDyMFoam/ras/sloshingTank3D/system/fvSolution
index 696ba9cc79..0f9b300499 100644
--- a/tutorials/multiphase/interDyMFoam/ras/sloshingTank3D/system/fvSolution
+++ b/tutorials/multiphase/interDyMFoam/ras/sloshingTank3D/system/fvSolution
@@ -17,7 +17,7 @@ FoamFile
 
 solvers
 {
-    alpha1
+    alpha.water
     {
         nAlphaCorr      1;
         nAlphaSubCycles 3;
diff --git a/tutorials/multiphase/interDyMFoam/ras/sloshingTank3D/system/setFieldsDict b/tutorials/multiphase/interDyMFoam/ras/sloshingTank3D/system/setFieldsDict
index ec8d1717d5..410a0a6f10 100644
--- a/tutorials/multiphase/interDyMFoam/ras/sloshingTank3D/system/setFieldsDict
+++ b/tutorials/multiphase/interDyMFoam/ras/sloshingTank3D/system/setFieldsDict
@@ -17,7 +17,7 @@ FoamFile
 
 defaultFieldValues
 (
-    volScalarFieldValue alpha1 0
+    volScalarFieldValue alpha.water 0
 );
 
 regions
@@ -27,7 +27,7 @@ regions
         box ( -100 -100 -100 ) ( 100 100 0 );
         fieldValues
         (
-            volScalarFieldValue alpha1 1
+            volScalarFieldValue alpha.water 1
         );
     }
 );
diff --git a/tutorials/multiphase/interDyMFoam/ras/sloshingTank3D3DoF/0/alpha1.org b/tutorials/multiphase/interDyMFoam/ras/sloshingTank3D3DoF/0/alpha.water.org
similarity index 97%
rename from tutorials/multiphase/interDyMFoam/ras/sloshingTank3D3DoF/0/alpha1.org
rename to tutorials/multiphase/interDyMFoam/ras/sloshingTank3D3DoF/0/alpha.water.org
index f40309af2e..bdebcf1ab4 100644
--- a/tutorials/multiphase/interDyMFoam/ras/sloshingTank3D3DoF/0/alpha1.org
+++ b/tutorials/multiphase/interDyMFoam/ras/sloshingTank3D3DoF/0/alpha.water.org
@@ -10,7 +10,7 @@ FoamFile
     version     2.0;
     format      ascii;
     class       volScalarField;
-    object      alpha1;
+    object      alpha.water;
 }
 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
diff --git a/tutorials/multiphase/interDyMFoam/ras/sloshingTank3D3DoF/Allclean b/tutorials/multiphase/interDyMFoam/ras/sloshingTank3D3DoF/Allclean
index 4ee30b518c..faacf01f18 100755
--- a/tutorials/multiphase/interDyMFoam/ras/sloshingTank3D3DoF/Allclean
+++ b/tutorials/multiphase/interDyMFoam/ras/sloshingTank3D3DoF/Allclean
@@ -2,6 +2,6 @@
 cd ${0%/*} || exit 1    # run from this directory
 
 foamCleanTutorials cases
-rm -rf 0/alpha1 0/alpha1.gz probes wallPressure pRefProbe
+rm -rf 0/alpha.water 0/alpha.water.gz probes wallPressure pRefProbe
 
 # ----------------------------------------------------------------- end-of-file
diff --git a/tutorials/multiphase/interDyMFoam/ras/sloshingTank3D3DoF/Allrun b/tutorials/multiphase/interDyMFoam/ras/sloshingTank3D3DoF/Allrun
index 3b8cb649c2..7ea0ac7744 100755
--- a/tutorials/multiphase/interDyMFoam/ras/sloshingTank3D3DoF/Allrun
+++ b/tutorials/multiphase/interDyMFoam/ras/sloshingTank3D3DoF/Allrun
@@ -6,7 +6,7 @@ cd ${0%/*} || exit 1    # run from this directory
 
 m4 constant/polyMesh/blockMeshDict.m4 > constant/polyMesh/blockMeshDict
 runApplication blockMesh
-cp 0/alpha1.org 0/alpha1
+cp 0/alpha.water.org 0/alpha.water
 runApplication setFields
 runApplication `getApplication`
 
diff --git a/tutorials/multiphase/interDyMFoam/ras/sloshingTank3D3DoF/constant/transportProperties b/tutorials/multiphase/interDyMFoam/ras/sloshingTank3D3DoF/constant/transportProperties
index 02287f422b..3729fc7648 100644
--- a/tutorials/multiphase/interDyMFoam/ras/sloshingTank3D3DoF/constant/transportProperties
+++ b/tutorials/multiphase/interDyMFoam/ras/sloshingTank3D3DoF/constant/transportProperties
@@ -15,14 +15,16 @@ FoamFile
 }
 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
-phase1
+phases (water air);
+
+water
 {
     transportModel  Newtonian;
     nu              nu [ 0 2 -1 0 0 0 0 ] 1e-06;
     rho             rho [ 1 -3 0 0 0 0 0 ] 998.2;
 }
 
-phase2
+air
 {
     transportModel  Newtonian;
     nu              nu [ 0 2 -1 0 0 0 0 ] 1.48e-05;
diff --git a/tutorials/multiphase/interDyMFoam/ras/sloshingTank3D3DoF/system/fvSolution b/tutorials/multiphase/interDyMFoam/ras/sloshingTank3D3DoF/system/fvSolution
index 696ba9cc79..0f9b300499 100644
--- a/tutorials/multiphase/interDyMFoam/ras/sloshingTank3D3DoF/system/fvSolution
+++ b/tutorials/multiphase/interDyMFoam/ras/sloshingTank3D3DoF/system/fvSolution
@@ -17,7 +17,7 @@ FoamFile
 
 solvers
 {
-    alpha1
+    alpha.water
     {
         nAlphaCorr      1;
         nAlphaSubCycles 3;
diff --git a/tutorials/multiphase/interDyMFoam/ras/sloshingTank3D3DoF/system/setFieldsDict b/tutorials/multiphase/interDyMFoam/ras/sloshingTank3D3DoF/system/setFieldsDict
index ec8d1717d5..410a0a6f10 100644
--- a/tutorials/multiphase/interDyMFoam/ras/sloshingTank3D3DoF/system/setFieldsDict
+++ b/tutorials/multiphase/interDyMFoam/ras/sloshingTank3D3DoF/system/setFieldsDict
@@ -17,7 +17,7 @@ FoamFile
 
 defaultFieldValues
 (
-    volScalarFieldValue alpha1 0
+    volScalarFieldValue alpha.water 0
 );
 
 regions
@@ -27,7 +27,7 @@ regions
         box ( -100 -100 -100 ) ( 100 100 0 );
         fieldValues
         (
-            volScalarFieldValue alpha1 1
+            volScalarFieldValue alpha.water 1
         );
     }
 );
diff --git a/tutorials/multiphase/interDyMFoam/ras/sloshingTank3D/0/alpha1.org b/tutorials/multiphase/interDyMFoam/ras/sloshingTank3D6DoF/0/alpha.water.org
similarity index 97%
rename from tutorials/multiphase/interDyMFoam/ras/sloshingTank3D/0/alpha1.org
rename to tutorials/multiphase/interDyMFoam/ras/sloshingTank3D6DoF/0/alpha.water.org
index f40309af2e..bdebcf1ab4 100644
--- a/tutorials/multiphase/interDyMFoam/ras/sloshingTank3D/0/alpha1.org
+++ b/tutorials/multiphase/interDyMFoam/ras/sloshingTank3D6DoF/0/alpha.water.org
@@ -10,7 +10,7 @@ FoamFile
     version     2.0;
     format      ascii;
     class       volScalarField;
-    object      alpha1;
+    object      alpha.water;
 }
 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
diff --git a/tutorials/multiphase/interDyMFoam/ras/sloshingTank3D6DoF/Allclean b/tutorials/multiphase/interDyMFoam/ras/sloshingTank3D6DoF/Allclean
index 4ee30b518c..faacf01f18 100755
--- a/tutorials/multiphase/interDyMFoam/ras/sloshingTank3D6DoF/Allclean
+++ b/tutorials/multiphase/interDyMFoam/ras/sloshingTank3D6DoF/Allclean
@@ -2,6 +2,6 @@
 cd ${0%/*} || exit 1    # run from this directory
 
 foamCleanTutorials cases
-rm -rf 0/alpha1 0/alpha1.gz probes wallPressure pRefProbe
+rm -rf 0/alpha.water 0/alpha.water.gz probes wallPressure pRefProbe
 
 # ----------------------------------------------------------------- end-of-file
diff --git a/tutorials/multiphase/interDyMFoam/ras/sloshingTank3D6DoF/Allrun b/tutorials/multiphase/interDyMFoam/ras/sloshingTank3D6DoF/Allrun
index 3b8cb649c2..7ea0ac7744 100755
--- a/tutorials/multiphase/interDyMFoam/ras/sloshingTank3D6DoF/Allrun
+++ b/tutorials/multiphase/interDyMFoam/ras/sloshingTank3D6DoF/Allrun
@@ -6,7 +6,7 @@ cd ${0%/*} || exit 1    # run from this directory
 
 m4 constant/polyMesh/blockMeshDict.m4 > constant/polyMesh/blockMeshDict
 runApplication blockMesh
-cp 0/alpha1.org 0/alpha1
+cp 0/alpha.water.org 0/alpha.water
 runApplication setFields
 runApplication `getApplication`
 
diff --git a/tutorials/multiphase/interDyMFoam/ras/sloshingTank3D6DoF/constant/transportProperties b/tutorials/multiphase/interDyMFoam/ras/sloshingTank3D6DoF/constant/transportProperties
index 02287f422b..3729fc7648 100644
--- a/tutorials/multiphase/interDyMFoam/ras/sloshingTank3D6DoF/constant/transportProperties
+++ b/tutorials/multiphase/interDyMFoam/ras/sloshingTank3D6DoF/constant/transportProperties
@@ -15,14 +15,16 @@ FoamFile
 }
 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
-phase1
+phases (water air);
+
+water
 {
     transportModel  Newtonian;
     nu              nu [ 0 2 -1 0 0 0 0 ] 1e-06;
     rho             rho [ 1 -3 0 0 0 0 0 ] 998.2;
 }
 
-phase2
+air
 {
     transportModel  Newtonian;
     nu              nu [ 0 2 -1 0 0 0 0 ] 1.48e-05;
diff --git a/tutorials/multiphase/interDyMFoam/ras/sloshingTank3D6DoF/system/fvSolution b/tutorials/multiphase/interDyMFoam/ras/sloshingTank3D6DoF/system/fvSolution
index 696ba9cc79..0f9b300499 100644
--- a/tutorials/multiphase/interDyMFoam/ras/sloshingTank3D6DoF/system/fvSolution
+++ b/tutorials/multiphase/interDyMFoam/ras/sloshingTank3D6DoF/system/fvSolution
@@ -17,7 +17,7 @@ FoamFile
 
 solvers
 {
-    alpha1
+    alpha.water
     {
         nAlphaCorr      1;
         nAlphaSubCycles 3;
diff --git a/tutorials/multiphase/interDyMFoam/ras/sloshingTank3D6DoF/system/setFieldsDict b/tutorials/multiphase/interDyMFoam/ras/sloshingTank3D6DoF/system/setFieldsDict
index 7ff571c6d1..5ea2a37352 100644
--- a/tutorials/multiphase/interDyMFoam/ras/sloshingTank3D6DoF/system/setFieldsDict
+++ b/tutorials/multiphase/interDyMFoam/ras/sloshingTank3D6DoF/system/setFieldsDict
@@ -17,7 +17,7 @@ FoamFile
 
 defaultFieldValues
 (
-    volScalarFieldValue alpha1 0
+    volScalarFieldValue alpha.water 0
 );
 
 regions
@@ -25,7 +25,7 @@ regions
     boxToCell
     {
         box ( -100 -100 -100 ) ( 100 100 0 );
-        fieldValues ( volScalarFieldValue alpha1 1 );
+        fieldValues ( volScalarFieldValue alpha.water 1 );
     }
 );
 
diff --git a/tutorials/multiphase/interDyMFoam/ras/sloshingTank3D6DoF/0/alpha1.org b/tutorials/multiphase/interDyMFoam/ras/testTubeMixer/0/alpha.water.org
similarity index 97%
rename from tutorials/multiphase/interDyMFoam/ras/sloshingTank3D6DoF/0/alpha1.org
rename to tutorials/multiphase/interDyMFoam/ras/testTubeMixer/0/alpha.water.org
index f40309af2e..bdebcf1ab4 100644
--- a/tutorials/multiphase/interDyMFoam/ras/sloshingTank3D6DoF/0/alpha1.org
+++ b/tutorials/multiphase/interDyMFoam/ras/testTubeMixer/0/alpha.water.org
@@ -10,7 +10,7 @@ FoamFile
     version     2.0;
     format      ascii;
     class       volScalarField;
-    object      alpha1;
+    object      alpha.water;
 }
 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
diff --git a/tutorials/multiphase/interDyMFoam/ras/testTubeMixer/Allclean b/tutorials/multiphase/interDyMFoam/ras/testTubeMixer/Allclean
index 82e093ec03..5874c7a050 100755
--- a/tutorials/multiphase/interDyMFoam/ras/testTubeMixer/Allclean
+++ b/tutorials/multiphase/interDyMFoam/ras/testTubeMixer/Allclean
@@ -5,6 +5,6 @@ cd ${0%/*} || exit 1    # run from this directory
 . $WM_PROJECT_DIR/bin/tools/CleanFunctions
 
 cleanCase
-rm -rf 0/alpha1
+rm -rf 0/alpha.water
 
 # ----------------------------------------------------------------- end-of-file
diff --git a/tutorials/multiphase/interDyMFoam/ras/testTubeMixer/Allrun b/tutorials/multiphase/interDyMFoam/ras/testTubeMixer/Allrun
index 0f2a6dea43..4e10bfcacc 100755
--- a/tutorials/multiphase/interDyMFoam/ras/testTubeMixer/Allrun
+++ b/tutorials/multiphase/interDyMFoam/ras/testTubeMixer/Allrun
@@ -5,7 +5,7 @@ cd ${0%/*} || exit 1    # run from this directory
 . $WM_PROJECT_DIR/bin/tools/RunFunctions
 
 runApplication blockMesh
-cp 0/alpha1.org 0/alpha1
+cp 0/alpha.water.org 0/alpha.water
 runApplication setFields
 runApplication `getApplication`
 
diff --git a/tutorials/multiphase/interDyMFoam/ras/testTubeMixer/constant/transportProperties b/tutorials/multiphase/interDyMFoam/ras/testTubeMixer/constant/transportProperties
index 02287f422b..3729fc7648 100644
--- a/tutorials/multiphase/interDyMFoam/ras/testTubeMixer/constant/transportProperties
+++ b/tutorials/multiphase/interDyMFoam/ras/testTubeMixer/constant/transportProperties
@@ -15,14 +15,16 @@ FoamFile
 }
 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
-phase1
+phases (water air);
+
+water
 {
     transportModel  Newtonian;
     nu              nu [ 0 2 -1 0 0 0 0 ] 1e-06;
     rho             rho [ 1 -3 0 0 0 0 0 ] 998.2;
 }
 
-phase2
+air
 {
     transportModel  Newtonian;
     nu              nu [ 0 2 -1 0 0 0 0 ] 1.48e-05;
diff --git a/tutorials/multiphase/interDyMFoam/ras/testTubeMixer/system/fvSolution b/tutorials/multiphase/interDyMFoam/ras/testTubeMixer/system/fvSolution
index 54f20e5253..39d907fa79 100644
--- a/tutorials/multiphase/interDyMFoam/ras/testTubeMixer/system/fvSolution
+++ b/tutorials/multiphase/interDyMFoam/ras/testTubeMixer/system/fvSolution
@@ -17,7 +17,7 @@ FoamFile
 
 solvers
 {
-    alpha1
+    alpha.water
     {
         nAlphaCorr      1;
         nAlphaSubCycles 3;
diff --git a/tutorials/multiphase/interDyMFoam/ras/testTubeMixer/system/setFieldsDict b/tutorials/multiphase/interDyMFoam/ras/testTubeMixer/system/setFieldsDict
index 8229dc2582..3b3ed7f998 100644
--- a/tutorials/multiphase/interDyMFoam/ras/testTubeMixer/system/setFieldsDict
+++ b/tutorials/multiphase/interDyMFoam/ras/testTubeMixer/system/setFieldsDict
@@ -17,7 +17,7 @@ FoamFile
 
 defaultFieldValues
 (
-    volScalarFieldValue alpha1 0
+    volScalarFieldValue alpha.water 0
 );
 
 regions
@@ -25,7 +25,7 @@ regions
     boxToCell
     {
         box ( -100 -100 -100 ) ( 100 100 -0.0025);
-        fieldValues ( volScalarFieldValue alpha1 1 );
+        fieldValues ( volScalarFieldValue alpha.water 1 );
     }
 );
 
diff --git a/tutorials/multiphase/interFoam/laminar/Allclean b/tutorials/multiphase/interFoam/laminar/Allclean
index 909068ce6c..d5d1e50d10 100755
--- a/tutorials/multiphase/interFoam/laminar/Allclean
+++ b/tutorials/multiphase/interFoam/laminar/Allclean
@@ -9,7 +9,7 @@ loseCases="damBreakFine"
 
 for case in $keepCases
 do
-    (cd $case && foamCleanTutorials && rm -rf 0/alpha1)
+    (cd $case && foamCleanTutorials && rm -rf 0/alpha.water)
 done
 
 for case in $loseCases
diff --git a/tutorials/multiphase/interFoam/laminar/Allrun b/tutorials/multiphase/interFoam/laminar/Allrun
index 510e4498db..c0e6661c4b 100755
--- a/tutorials/multiphase/interFoam/laminar/Allrun
+++ b/tutorials/multiphase/interFoam/laminar/Allrun
@@ -28,7 +28,7 @@ setDamBreakFine ()
     cd damBreak || exit
 
     runApplication blockMesh
-    cp 0/alpha1.org 0/alpha1
+    cp 0/alpha.water.org 0/alpha.water
     runApplication setFields
     runApplication `getApplication`
 )
@@ -44,7 +44,7 @@ cloneCase damBreak damBreakFine
 
     # And execute
     runApplication blockMesh
-    cp ../damBreak/0/alpha1.org 0/alpha1
+    cp ../damBreak/0/alpha.water.org 0/alpha.water
     runApplication setFields
     runApplication decomposePar
     runParallel `getApplication` 4
@@ -56,7 +56,7 @@ cloneCase damBreak damBreakFine
     cd capillaryRise || exit
 
     runApplication blockMesh
-    cp 0/alpha1.org 0/alpha1
+    cp 0/alpha.water.org 0/alpha.water
     runApplication setFields
     runApplication `getApplication`
 )
diff --git a/tutorials/multiphase/interFoam/laminar/capillaryRise/0/alpha1.org b/tutorials/multiphase/interFoam/laminar/capillaryRise/0/alpha.water.org
similarity index 100%
rename from tutorials/multiphase/interFoam/laminar/capillaryRise/0/alpha1.org
rename to tutorials/multiphase/interFoam/laminar/capillaryRise/0/alpha.water.org
diff --git a/tutorials/multiphase/interFoam/laminar/capillaryRise/constant/transportProperties b/tutorials/multiphase/interFoam/laminar/capillaryRise/constant/transportProperties
index 2b39cb45eb..73d4778c97 100644
--- a/tutorials/multiphase/interFoam/laminar/capillaryRise/constant/transportProperties
+++ b/tutorials/multiphase/interFoam/laminar/capillaryRise/constant/transportProperties
@@ -15,7 +15,9 @@ FoamFile
 }
 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
-phase1
+phases (water air);
+
+water
 {
     transportModel  Newtonian;
     nu              nu [0 2 -1 0 0 0 0] 1e-06;
@@ -36,7 +38,7 @@ phase1
     }
 }
 
-phase2
+air
 {
     transportModel  Newtonian;
     nu              nu [0 2 -1 0 0 0 0] 1.48e-05;
diff --git a/tutorials/multiphase/interFoam/laminar/capillaryRise/system/fvSchemes b/tutorials/multiphase/interFoam/laminar/capillaryRise/system/fvSchemes
index 2a580ed9eb..aded32f195 100644
--- a/tutorials/multiphase/interFoam/laminar/capillaryRise/system/fvSchemes
+++ b/tutorials/multiphase/interFoam/laminar/capillaryRise/system/fvSchemes
@@ -53,7 +53,7 @@ fluxRequired
     default         no;
     p_rgh;
     pcorr;
-    alpha1;
+    alpha.water;
 }
 
 
diff --git a/tutorials/multiphase/interFoam/laminar/capillaryRise/system/fvSolution b/tutorials/multiphase/interFoam/laminar/capillaryRise/system/fvSolution
index 6bea572056..36156e8614 100644
--- a/tutorials/multiphase/interFoam/laminar/capillaryRise/system/fvSolution
+++ b/tutorials/multiphase/interFoam/laminar/capillaryRise/system/fvSolution
@@ -17,7 +17,7 @@ FoamFile
 
 solvers
 {
-    alpha1
+    alpha.water
     {
         nAlphaCorr      1;
         nAlphaSubCycles 2;
diff --git a/tutorials/multiphase/interFoam/laminar/capillaryRise/system/setFieldsDict b/tutorials/multiphase/interFoam/laminar/capillaryRise/system/setFieldsDict
index b6a5cdd65a..91bd115659 100644
--- a/tutorials/multiphase/interFoam/laminar/capillaryRise/system/setFieldsDict
+++ b/tutorials/multiphase/interFoam/laminar/capillaryRise/system/setFieldsDict
@@ -17,7 +17,7 @@ FoamFile
 
 defaultFieldValues
 (
-    volScalarFieldValue alpha1 0
+    volScalarFieldValue alpha.water 0
 );
 
 regions
@@ -28,7 +28,7 @@ regions
 
         fieldValues
         (
-            volScalarFieldValue alpha1 1
+            volScalarFieldValue alpha.water 1
         );
     }
 );
diff --git a/tutorials/multiphase/interFoam/ras/damBreak/0/alpha1.org b/tutorials/multiphase/interFoam/laminar/damBreak/0/alpha.water.org
similarity index 97%
rename from tutorials/multiphase/interFoam/ras/damBreak/0/alpha1.org
rename to tutorials/multiphase/interFoam/laminar/damBreak/0/alpha.water.org
index df85d65055..b2319f1aa5 100644
--- a/tutorials/multiphase/interFoam/ras/damBreak/0/alpha1.org
+++ b/tutorials/multiphase/interFoam/laminar/damBreak/0/alpha.water.org
@@ -10,7 +10,7 @@ FoamFile
     version     2.0;
     format      ascii;
     class       volScalarField;
-    object      alpha1;
+    object      alpha.water;
 }
 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
diff --git a/tutorials/multiphase/interFoam/laminar/damBreak/constant/transportProperties b/tutorials/multiphase/interFoam/laminar/damBreak/constant/transportProperties
index ba430bce29..81106f5ea4 100644
--- a/tutorials/multiphase/interFoam/laminar/damBreak/constant/transportProperties
+++ b/tutorials/multiphase/interFoam/laminar/damBreak/constant/transportProperties
@@ -15,7 +15,9 @@ FoamFile
 }
 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
-phase1
+phases (water air);
+
+water
 {
     transportModel  Newtonian;
     nu              nu [ 0 2 -1 0 0 0 0 ] 1e-06;
@@ -37,7 +39,7 @@ phase1
     }
 }
 
-phase2
+air
 {
     transportModel  Newtonian;
     nu              nu [ 0 2 -1 0 0 0 0 ] 1.48e-05;
diff --git a/tutorials/multiphase/interFoam/laminar/damBreak/system/fvSchemes b/tutorials/multiphase/interFoam/laminar/damBreak/system/fvSchemes
index 986a20eebe..1d9632b674 100644
--- a/tutorials/multiphase/interFoam/laminar/damBreak/system/fvSchemes
+++ b/tutorials/multiphase/interFoam/laminar/damBreak/system/fvSchemes
@@ -53,7 +53,7 @@ fluxRequired
     default         no;
     p_rgh;
     pcorr;
-    alpha1;
+    alpha.water;
 }
 
 
diff --git a/tutorials/multiphase/interFoam/laminar/damBreak/system/fvSolution b/tutorials/multiphase/interFoam/laminar/damBreak/system/fvSolution
index 6bea572056..36156e8614 100644
--- a/tutorials/multiphase/interFoam/laminar/damBreak/system/fvSolution
+++ b/tutorials/multiphase/interFoam/laminar/damBreak/system/fvSolution
@@ -17,7 +17,7 @@ FoamFile
 
 solvers
 {
-    alpha1
+    alpha.water
     {
         nAlphaCorr      1;
         nAlphaSubCycles 2;
diff --git a/tutorials/multiphase/interFoam/laminar/damBreak/system/setFieldsDict b/tutorials/multiphase/interFoam/laminar/damBreak/system/setFieldsDict
index 3152d48347..2a577a3c7d 100644
--- a/tutorials/multiphase/interFoam/laminar/damBreak/system/setFieldsDict
+++ b/tutorials/multiphase/interFoam/laminar/damBreak/system/setFieldsDict
@@ -17,7 +17,7 @@ FoamFile
 
 defaultFieldValues
 (
-    volScalarFieldValue alpha1 0
+    volScalarFieldValue alpha.water 0
 );
 
 regions
@@ -27,7 +27,7 @@ regions
         box (0 0 -1) (0.1461 0.292 1);
         fieldValues
         (
-            volScalarFieldValue alpha1 1
+            volScalarFieldValue alpha.water 1
         );
     }
 );
diff --git a/tutorials/multiphase/interFoam/les/nozzleFlow2D/0/alpha1 b/tutorials/multiphase/interFoam/les/nozzleFlow2D/0/alpha.fuel
similarity index 97%
rename from tutorials/multiphase/interFoam/les/nozzleFlow2D/0/alpha1
rename to tutorials/multiphase/interFoam/les/nozzleFlow2D/0/alpha.fuel
index 94befdfae8..baf41e0bb3 100644
--- a/tutorials/multiphase/interFoam/les/nozzleFlow2D/0/alpha1
+++ b/tutorials/multiphase/interFoam/les/nozzleFlow2D/0/alpha.fuel
@@ -10,7 +10,7 @@ FoamFile
     version     2.0;
     format      ascii;
     class       volScalarField;
-    object      alpha1;
+    object      alpha.fuel;
 }
 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
diff --git a/tutorials/multiphase/interFoam/les/nozzleFlow2D/constant/transportProperties b/tutorials/multiphase/interFoam/les/nozzleFlow2D/constant/transportProperties
index fa41fd38c3..c74376aa3f 100644
--- a/tutorials/multiphase/interFoam/les/nozzleFlow2D/constant/transportProperties
+++ b/tutorials/multiphase/interFoam/les/nozzleFlow2D/constant/transportProperties
@@ -15,14 +15,9 @@ FoamFile
 }
 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
-twoPhase
-{
-    transportModel  twoPhase;
-    phase1          phase1;
-    phase2          phase2;
-}
+phases (fuel air);
 
-phase1
+fuel
 {
     transportModel  Newtonian;
     nu              nu [ 0 2 -1 0 0 0 0 ] 5.952e-06;
@@ -44,7 +39,7 @@ phase1
     }
 }
 
-phase2
+air
 {
     transportModel  Newtonian;
     nu              nu [ 0 2 -1 0 0 0 0 ] 8.5e-07;
diff --git a/tutorials/multiphase/interFoam/les/nozzleFlow2D/system/fvSolution b/tutorials/multiphase/interFoam/les/nozzleFlow2D/system/fvSolution
index d7383123a6..479dee58a2 100644
--- a/tutorials/multiphase/interFoam/les/nozzleFlow2D/system/fvSolution
+++ b/tutorials/multiphase/interFoam/les/nozzleFlow2D/system/fvSolution
@@ -17,7 +17,7 @@ FoamFile
 
 solvers
 {
-    alpha1
+    alpha.fuel
     {
         nAlphaCorr      1;
         nAlphaSubCycles 4;
diff --git a/tutorials/multiphase/interFoam/ras/Allclean b/tutorials/multiphase/interFoam/ras/Allclean
index 63a607fe3f..f76151df3d 100755
--- a/tutorials/multiphase/interFoam/ras/Allclean
+++ b/tutorials/multiphase/interFoam/ras/Allclean
@@ -13,12 +13,12 @@ do
 
     if [ "$case" = "damBreak" ]
     then
-        cp $case/0/alpha1.org $case/0/alpha1
+        cp $case/0/alpha.water.org $case/0/alpha.water
     fi
 
     if [ "$case" = "damBreakPorousBaffle" ]
     then
-        cp $case/0/alpha1.org $case/0/alpha1
+        cp $case/0/alpha.water.org $case/0/alpha.water
     fi
 
 done
diff --git a/tutorials/multiphase/interFoam/ras/Allrun b/tutorials/multiphase/interFoam/ras/Allrun
index f130490987..0378faad39 100755
--- a/tutorials/multiphase/interFoam/ras/Allrun
+++ b/tutorials/multiphase/interFoam/ras/Allrun
@@ -23,9 +23,6 @@ setDamBreakFine ()
     mv temp.$$ $controlDict
 }
 
-# Do damBreakPorousBaffle
-(cd damBreakPorousBaffle && foamRunTutorials)
-
 # Do damBreak
 (cd damBreak && foamRunTutorials)
 
@@ -37,7 +34,7 @@ cloneCase damBreak damBreakFine
 
     # Modify case
     setDamBreakFine
-    cp ../damBreak/0/alpha1.org 0/alpha1
+    cp ../damBreak/0/alpha.water.org 0/alpha.water
     # And execute
     runApplication blockMesh
     runApplication setFields
diff --git a/tutorials/multiphase/interFoam/ras/damBreak/0/alpha1 b/tutorials/multiphase/interFoam/ras/damBreak/0/alpha.water
similarity index 97%
rename from tutorials/multiphase/interFoam/ras/damBreak/0/alpha1
rename to tutorials/multiphase/interFoam/ras/damBreak/0/alpha.water
index df85d65055..b2319f1aa5 100644
--- a/tutorials/multiphase/interFoam/ras/damBreak/0/alpha1
+++ b/tutorials/multiphase/interFoam/ras/damBreak/0/alpha.water
@@ -10,7 +10,7 @@ FoamFile
     version     2.0;
     format      ascii;
     class       volScalarField;
-    object      alpha1;
+    object      alpha.water;
 }
 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
diff --git a/tutorials/multiphase/interFoam/laminar/damBreak/0/alpha1.org b/tutorials/multiphase/interFoam/ras/damBreak/0/alpha.water.org
similarity index 97%
rename from tutorials/multiphase/interFoam/laminar/damBreak/0/alpha1.org
rename to tutorials/multiphase/interFoam/ras/damBreak/0/alpha.water.org
index 5dc1b6e2d0..b2319f1aa5 100644
--- a/tutorials/multiphase/interFoam/laminar/damBreak/0/alpha1.org
+++ b/tutorials/multiphase/interFoam/ras/damBreak/0/alpha.water.org
@@ -10,7 +10,7 @@ FoamFile
     version     2.0;
     format      ascii;
     class       volScalarField;
-    object      alpha;
+    object      alpha.water;
 }
 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
diff --git a/tutorials/multiphase/interFoam/ras/damBreak/constant/transportProperties b/tutorials/multiphase/interFoam/ras/damBreak/constant/transportProperties
index ef3e8c7b4b..81106f5ea4 100644
--- a/tutorials/multiphase/interFoam/ras/damBreak/constant/transportProperties
+++ b/tutorials/multiphase/interFoam/ras/damBreak/constant/transportProperties
@@ -15,14 +15,9 @@ FoamFile
 }
 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
-twoPhase
-{
-    transportModel  twoPhase;
-    phase1          phase1;
-    phase2          phase2;
-}
+phases (water air);
 
-phase1
+water
 {
     transportModel  Newtonian;
     nu              nu [ 0 2 -1 0 0 0 0 ] 1e-06;
@@ -44,7 +39,7 @@ phase1
     }
 }
 
-phase2
+air
 {
     transportModel  Newtonian;
     nu              nu [ 0 2 -1 0 0 0 0 ] 1.48e-05;
diff --git a/tutorials/multiphase/interFoam/ras/damBreak/system/fvSolution b/tutorials/multiphase/interFoam/ras/damBreak/system/fvSolution
index a30ce4ddb8..f6725a947b 100644
--- a/tutorials/multiphase/interFoam/ras/damBreak/system/fvSolution
+++ b/tutorials/multiphase/interFoam/ras/damBreak/system/fvSolution
@@ -17,7 +17,7 @@ FoamFile
 
 solvers
 {
-    alpha1
+    alpha.water
     {
         nAlphaCorr      1;
         nAlphaSubCycles 4;
diff --git a/tutorials/multiphase/interFoam/ras/damBreak/system/setFieldsDict b/tutorials/multiphase/interFoam/ras/damBreak/system/setFieldsDict
index 3152d48347..2a577a3c7d 100644
--- a/tutorials/multiphase/interFoam/ras/damBreak/system/setFieldsDict
+++ b/tutorials/multiphase/interFoam/ras/damBreak/system/setFieldsDict
@@ -17,7 +17,7 @@ FoamFile
 
 defaultFieldValues
 (
-    volScalarFieldValue alpha1 0
+    volScalarFieldValue alpha.water 0
 );
 
 regions
@@ -27,7 +27,7 @@ regions
         box (0 0 -1) (0.1461 0.292 1);
         fieldValues
         (
-            volScalarFieldValue alpha1 1
+            volScalarFieldValue alpha.water 1
         );
     }
 );
diff --git a/tutorials/multiphase/interFoam/ras/damBreakPorousBaffle/0/alpha1 b/tutorials/multiphase/interFoam/ras/damBreakPorousBaffle/0/alpha.water
similarity index 97%
rename from tutorials/multiphase/interFoam/ras/damBreakPorousBaffle/0/alpha1
rename to tutorials/multiphase/interFoam/ras/damBreakPorousBaffle/0/alpha.water
index bf6106677f..e083c1f792 100644
--- a/tutorials/multiphase/interFoam/ras/damBreakPorousBaffle/0/alpha1
+++ b/tutorials/multiphase/interFoam/ras/damBreakPorousBaffle/0/alpha.water
@@ -11,7 +11,7 @@ FoamFile
     format      ascii;
     class       volScalarField;
     location    "0";
-    object      alpha1.org;
+    object      alpha.water.org;
 }
 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
diff --git a/tutorials/multiphase/interFoam/ras/damBreakPorousBaffle/0/alpha1.org b/tutorials/multiphase/interFoam/ras/damBreakPorousBaffle/0/alpha.water.org
similarity index 97%
rename from tutorials/multiphase/interFoam/ras/damBreakPorousBaffle/0/alpha1.org
rename to tutorials/multiphase/interFoam/ras/damBreakPorousBaffle/0/alpha.water.org
index bf6106677f..e083c1f792 100644
--- a/tutorials/multiphase/interFoam/ras/damBreakPorousBaffle/0/alpha1.org
+++ b/tutorials/multiphase/interFoam/ras/damBreakPorousBaffle/0/alpha.water.org
@@ -11,7 +11,7 @@ FoamFile
     format      ascii;
     class       volScalarField;
     location    "0";
-    object      alpha1.org;
+    object      alpha.water.org;
 }
 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
diff --git a/tutorials/multiphase/interFoam/ras/damBreakPorousBaffle/0/epsilon b/tutorials/multiphase/interFoam/ras/damBreakPorousBaffle/0/epsilon
index e8f209f7c1..3142dc8a64 100644
--- a/tutorials/multiphase/interFoam/ras/damBreakPorousBaffle/0/epsilon
+++ b/tutorials/multiphase/interFoam/ras/damBreakPorousBaffle/0/epsilon
@@ -24,6 +24,7 @@ boundaryField
     leftWall
     {
         type            epsilonWallFunction;
+        value           uniform 0.1;
         Cmu             0.09;
         kappa           0.41;
         E               9.8;
@@ -32,6 +33,7 @@ boundaryField
     rightWall
     {
         type            epsilonWallFunction;
+        value           uniform 0.1;
         Cmu             0.09;
         kappa           0.41;
         E               9.8;
@@ -40,6 +42,7 @@ boundaryField
     lowerWall
     {
         type            epsilonWallFunction;
+        value           uniform 0.1;
         Cmu             0.09;
         kappa           0.41;
         E               9.8;
diff --git a/tutorials/multiphase/interFoam/ras/damBreakPorousBaffle/0/p_rgh b/tutorials/multiphase/interFoam/ras/damBreakPorousBaffle/0/p_rgh
index cb36fb3b7d..0b3ae667f0 100644
--- a/tutorials/multiphase/interFoam/ras/damBreakPorousBaffle/0/p_rgh
+++ b/tutorials/multiphase/interFoam/ras/damBreakPorousBaffle/0/p_rgh
@@ -25,16 +25,19 @@ boundaryField
     {
         type            fixedFluxPressure;
         gradient        uniform 0;
+        value           uniform 0;
     }
     rightWall
     {
         type            fixedFluxPressure;
         gradient        uniform 0;
+        value           uniform 0;
     }
     lowerWall
     {
         type            fixedFluxPressure;
         gradient        uniform 0;
+        value           uniform 0;
     }
     atmosphere
     {
diff --git a/tutorials/multiphase/interFoam/ras/damBreakPorousBaffle/constant/transportProperties b/tutorials/multiphase/interFoam/ras/damBreakPorousBaffle/constant/transportProperties
index ef3e8c7b4b..81106f5ea4 100644
--- a/tutorials/multiphase/interFoam/ras/damBreakPorousBaffle/constant/transportProperties
+++ b/tutorials/multiphase/interFoam/ras/damBreakPorousBaffle/constant/transportProperties
@@ -15,14 +15,9 @@ FoamFile
 }
 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
-twoPhase
-{
-    transportModel  twoPhase;
-    phase1          phase1;
-    phase2          phase2;
-}
+phases (water air);
 
-phase1
+water
 {
     transportModel  Newtonian;
     nu              nu [ 0 2 -1 0 0 0 0 ] 1e-06;
@@ -44,7 +39,7 @@ phase1
     }
 }
 
-phase2
+air
 {
     transportModel  Newtonian;
     nu              nu [ 0 2 -1 0 0 0 0 ] 1.48e-05;
diff --git a/tutorials/multiphase/interFoam/ras/damBreakPorousBaffle/system/fvSolution b/tutorials/multiphase/interFoam/ras/damBreakPorousBaffle/system/fvSolution
index 96c64a2a1c..a7103f6d62 100644
--- a/tutorials/multiphase/interFoam/ras/damBreakPorousBaffle/system/fvSolution
+++ b/tutorials/multiphase/interFoam/ras/damBreakPorousBaffle/system/fvSolution
@@ -17,7 +17,7 @@ FoamFile
 
 solvers
 {
-    alpha1
+    alpha.water
     {
         nAlphaCorr      1;
         nAlphaSubCycles 4;
diff --git a/tutorials/multiphase/interFoam/ras/damBreakPorousBaffle/system/setFieldsDict b/tutorials/multiphase/interFoam/ras/damBreakPorousBaffle/system/setFieldsDict
index 3152d48347..2a577a3c7d 100644
--- a/tutorials/multiphase/interFoam/ras/damBreakPorousBaffle/system/setFieldsDict
+++ b/tutorials/multiphase/interFoam/ras/damBreakPorousBaffle/system/setFieldsDict
@@ -17,7 +17,7 @@ FoamFile
 
 defaultFieldValues
 (
-    volScalarFieldValue alpha1 0
+    volScalarFieldValue alpha.water 0
 );
 
 regions
@@ -27,7 +27,7 @@ regions
         box (0 0 -1) (0.1461 0.292 1);
         fieldValues
         (
-            volScalarFieldValue alpha1 1
+            volScalarFieldValue alpha.water 1
         );
     }
 );
diff --git a/tutorials/multiphase/interFoam/ras/waterChannel/0/alpha1.org b/tutorials/multiphase/interFoam/ras/waterChannel/0/alpha.water.org
similarity index 100%
rename from tutorials/multiphase/interFoam/ras/waterChannel/0/alpha1.org
rename to tutorials/multiphase/interFoam/ras/waterChannel/0/alpha.water.org
diff --git a/tutorials/multiphase/interFoam/ras/waterChannel/Allclean b/tutorials/multiphase/interFoam/ras/waterChannel/Allclean
index 0c04649fe1..72f44cb9ea 100755
--- a/tutorials/multiphase/interFoam/ras/waterChannel/Allclean
+++ b/tutorials/multiphase/interFoam/ras/waterChannel/Allclean
@@ -4,7 +4,7 @@ cd ${0%/*} || exit 1    # run from this directory
 # Source tutorial clean functions
 . $WM_PROJECT_DIR/bin/tools/CleanFunctions
 
-rm 0/alpha1.gz 0/alpha1 2>/dev/null
+rm 0/alpha.water.gz 0/alpha.water 2>/dev/null
 rm -rf *Flux
 
 cleanCase
diff --git a/tutorials/multiphase/interFoam/ras/waterChannel/Allrun b/tutorials/multiphase/interFoam/ras/waterChannel/Allrun
index 813ad03d79..7eef6a06be 100755
--- a/tutorials/multiphase/interFoam/ras/waterChannel/Allrun
+++ b/tutorials/multiphase/interFoam/ras/waterChannel/Allrun
@@ -17,7 +17,7 @@ while [ "$i" -lt 3 ] ; do
     i=`expr $i + 1`
 done
 
-cp 0/alpha1.org 0/alpha1
+cp 0/alpha.water.org 0/alpha.water
 runApplication setFields
 
 runApplication $application
diff --git a/tutorials/multiphase/interFoam/ras/waterChannel/LTSInterFoam/system/fvSchemes b/tutorials/multiphase/interFoam/ras/waterChannel/LTSInterFoam/system/fvSchemes
index 7018c5eaa7..de87355816 100644
--- a/tutorials/multiphase/interFoam/ras/waterChannel/LTSInterFoam/system/fvSchemes
+++ b/tutorials/multiphase/interFoam/ras/waterChannel/LTSInterFoam/system/fvSchemes
@@ -55,7 +55,7 @@ fluxRequired
     default         no;
     p_rgh;
     pcorr;
-    alpha1;
+    alpha.water;
 }
 
 
diff --git a/tutorials/multiphase/interFoam/ras/waterChannel/LTSInterFoam/system/fvSolution b/tutorials/multiphase/interFoam/ras/waterChannel/LTSInterFoam/system/fvSolution
index 62774a7610..cc69de4db5 100644
--- a/tutorials/multiphase/interFoam/ras/waterChannel/LTSInterFoam/system/fvSolution
+++ b/tutorials/multiphase/interFoam/ras/waterChannel/LTSInterFoam/system/fvSolution
@@ -17,7 +17,7 @@ FoamFile
 
 solvers
 {
-    alpha1
+    alpha.water
     {
         nAlphaCorr      1;
         nAlphaSubCycles 3;
diff --git a/tutorials/multiphase/interFoam/ras/waterChannel/LTSInterFoam/system/setFieldsDict b/tutorials/multiphase/interFoam/ras/waterChannel/LTSInterFoam/system/setFieldsDict
index 468fd9778b..0caad94498 100644
--- a/tutorials/multiphase/interFoam/ras/waterChannel/LTSInterFoam/system/setFieldsDict
+++ b/tutorials/multiphase/interFoam/ras/waterChannel/LTSInterFoam/system/setFieldsDict
@@ -17,7 +17,7 @@ FoamFile
 
 defaultFieldValues
 (
-    volScalarFieldValue alpha1 0
+    volScalarFieldValue alpha.water 0
 );
 
 regions
@@ -27,7 +27,7 @@ regions
         box (0 0 0) (50 130 27);
         fieldValues
         (
-            volScalarFieldValue alpha1 1
+            volScalarFieldValue alpha.water 1
         );
     }
 
@@ -36,7 +36,7 @@ regions
         box (0 0 0) (50 10.0001 24);
         fieldValues
         (
-            volScalarFieldValue alpha1 1
+            volScalarFieldValue alpha.water 1
         );
     }
 );
diff --git a/tutorials/multiphase/interFoam/ras/waterChannel/constant/transportProperties b/tutorials/multiphase/interFoam/ras/waterChannel/constant/transportProperties
index c90677dd56..b86717bf8d 100644
--- a/tutorials/multiphase/interFoam/ras/waterChannel/constant/transportProperties
+++ b/tutorials/multiphase/interFoam/ras/waterChannel/constant/transportProperties
@@ -15,14 +15,16 @@ FoamFile
 }
 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
-phase1
+phases (water air);
+
+water
 {
     transportModel  Newtonian;
     nu              nu [ 0 2 -1 0 0 0 0 ]  1e-06;
     rho             rho [ 1 -3 0 0 0 0 0 ] 1000;
 }
 
-phase2
+air
 {
     transportModel  Newtonian;
     nu              nu [ 0 2 -1 0 0 0 0 ]  1.48e-05;
diff --git a/tutorials/multiphase/interFoam/ras/waterChannel/system/fvSchemes b/tutorials/multiphase/interFoam/ras/waterChannel/system/fvSchemes
index bb536c017c..40a4e9640d 100644
--- a/tutorials/multiphase/interFoam/ras/waterChannel/system/fvSchemes
+++ b/tutorials/multiphase/interFoam/ras/waterChannel/system/fvSchemes
@@ -56,7 +56,7 @@ fluxRequired
     default         no;
     p_rgh;
     pcorr;
-    alpha1;
+    alpha.water;
 }
 
 
diff --git a/tutorials/multiphase/interFoam/ras/waterChannel/system/fvSolution b/tutorials/multiphase/interFoam/ras/waterChannel/system/fvSolution
index e2db3124d4..d2428017c4 100644
--- a/tutorials/multiphase/interFoam/ras/waterChannel/system/fvSolution
+++ b/tutorials/multiphase/interFoam/ras/waterChannel/system/fvSolution
@@ -17,7 +17,7 @@ FoamFile
 
 solvers
 {
-    alpha1
+    alpha.water
     {
         nAlphaCorr      1;
         nAlphaSubCycles 3;
diff --git a/tutorials/multiphase/interFoam/ras/waterChannel/system/setFieldsDict b/tutorials/multiphase/interFoam/ras/waterChannel/system/setFieldsDict
index f4f1c44476..2258df9f4f 100644
--- a/tutorials/multiphase/interFoam/ras/waterChannel/system/setFieldsDict
+++ b/tutorials/multiphase/interFoam/ras/waterChannel/system/setFieldsDict
@@ -17,7 +17,7 @@ FoamFile
 
 defaultFieldValues
 (
-    volScalarFieldValue alpha1 0
+    volScalarFieldValue alpha.water 0
 );
 
 regions
@@ -27,7 +27,7 @@ regions
         box (-10 -20 -10) (200 20 4);
         fieldValues
         (
-            volScalarFieldValue alpha1 1
+            volScalarFieldValue alpha.water 1
         );
     }
 );
diff --git a/tutorials/multiphase/interFoam/ras/weirOverflow/0.org/U b/tutorials/multiphase/interFoam/ras/weirOverflow/0.org/U
index 92b06fe0a6..6c087afc7d 100644
--- a/tutorials/multiphase/interFoam/ras/weirOverflow/0.org/U
+++ b/tutorials/multiphase/interFoam/ras/weirOverflow/0.org/U
@@ -26,6 +26,7 @@ boundaryField
     {
         type            variableHeightFlowRateInletVelocity;
         flowRate        $inletFlowRate;
+        alpha           alpha.water;
         value           uniform (0 0 0);
     }
 
diff --git a/tutorials/multiphase/interFoam/ras/weirOverflow/0.org/alpha1.org b/tutorials/multiphase/interFoam/ras/weirOverflow/0.org/alpha.water.org
similarity index 98%
rename from tutorials/multiphase/interFoam/ras/weirOverflow/0.org/alpha1.org
rename to tutorials/multiphase/interFoam/ras/weirOverflow/0.org/alpha.water.org
index deeaf2f3df..180c83d03e 100644
--- a/tutorials/multiphase/interFoam/ras/weirOverflow/0.org/alpha1.org
+++ b/tutorials/multiphase/interFoam/ras/weirOverflow/0.org/alpha.water.org
@@ -10,7 +10,7 @@ FoamFile
     version     2.0;
     format      ascii;
     class       volScalarField;
-    object      alpha1;
+    object      alpha.water;
 }
 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
diff --git a/tutorials/multiphase/interFoam/ras/weirOverflow/Allrun b/tutorials/multiphase/interFoam/ras/weirOverflow/Allrun
index da58c047f1..858f388243 100755
--- a/tutorials/multiphase/interFoam/ras/weirOverflow/Allrun
+++ b/tutorials/multiphase/interFoam/ras/weirOverflow/Allrun
@@ -7,7 +7,7 @@ cp -r 0.org 0 > /dev/null 2>&1
 
 runApplication blockMesh
 
-cp 0/alpha1.org 0/alpha1
+cp 0/alpha.water.org 0/alpha.water
 
 runApplication setFields
 
diff --git a/tutorials/multiphase/interFoam/ras/weirOverflow/constant/transportProperties b/tutorials/multiphase/interFoam/ras/weirOverflow/constant/transportProperties
index ef3e8c7b4b..81106f5ea4 100644
--- a/tutorials/multiphase/interFoam/ras/weirOverflow/constant/transportProperties
+++ b/tutorials/multiphase/interFoam/ras/weirOverflow/constant/transportProperties
@@ -15,14 +15,9 @@ FoamFile
 }
 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
-twoPhase
-{
-    transportModel  twoPhase;
-    phase1          phase1;
-    phase2          phase2;
-}
+phases (water air);
 
-phase1
+water
 {
     transportModel  Newtonian;
     nu              nu [ 0 2 -1 0 0 0 0 ] 1e-06;
@@ -44,7 +39,7 @@ phase1
     }
 }
 
-phase2
+air
 {
     transportModel  Newtonian;
     nu              nu [ 0 2 -1 0 0 0 0 ] 1.48e-05;
diff --git a/tutorials/multiphase/interFoam/ras/weirOverflow/system/fvSolution b/tutorials/multiphase/interFoam/ras/weirOverflow/system/fvSolution
index 3693fa3dfe..dc48e429db 100644
--- a/tutorials/multiphase/interFoam/ras/weirOverflow/system/fvSolution
+++ b/tutorials/multiphase/interFoam/ras/weirOverflow/system/fvSolution
@@ -16,7 +16,7 @@ FoamFile
 
 solvers
 {
-    alpha1
+    alpha.water
     {
         nAlphaCorr      1;
         nAlphaSubCycles 2;
diff --git a/tutorials/multiphase/interFoam/ras/weirOverflow/system/setFieldsDict b/tutorials/multiphase/interFoam/ras/weirOverflow/system/setFieldsDict
index 26d6b7f2a6..76fa077e7f 100644
--- a/tutorials/multiphase/interFoam/ras/weirOverflow/system/setFieldsDict
+++ b/tutorials/multiphase/interFoam/ras/weirOverflow/system/setFieldsDict
@@ -16,7 +16,7 @@ FoamFile
 
 defaultFieldValues
 (
-    volScalarFieldValue alpha1 0
+    volScalarFieldValue alpha.water 0
 );
 
 regions
@@ -27,7 +27,7 @@ regions
 
         fieldValues
         (
-            volScalarFieldValue alpha1 1
+            volScalarFieldValue alpha.water 1
         );
     }
 );
diff --git a/tutorials/multiphase/interPhaseChangeDyMFoam/propeller/0.org/alpha1 b/tutorials/multiphase/interPhaseChangeDyMFoam/propeller/0.org/alpha.water
similarity index 97%
rename from tutorials/multiphase/interPhaseChangeDyMFoam/propeller/0.org/alpha1
rename to tutorials/multiphase/interPhaseChangeDyMFoam/propeller/0.org/alpha.water
index a2e32cc8e8..3a2097df24 100644
--- a/tutorials/multiphase/interPhaseChangeDyMFoam/propeller/0.org/alpha1
+++ b/tutorials/multiphase/interPhaseChangeDyMFoam/propeller/0.org/alpha.water
@@ -11,7 +11,7 @@ FoamFile
     format      ascii;
     class       volScalarField;
     location    "0";
-    object      alpha1;
+    object      alpha.water;
 }
 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
diff --git a/tutorials/multiphase/interPhaseChangeDyMFoam/propeller/constant/transportProperties b/tutorials/multiphase/interPhaseChangeDyMFoam/propeller/constant/transportProperties
index 92e543ecce..be3d97f20a 100644
--- a/tutorials/multiphase/interPhaseChangeDyMFoam/propeller/constant/transportProperties
+++ b/tutorials/multiphase/interPhaseChangeDyMFoam/propeller/constant/transportProperties
@@ -15,20 +15,22 @@ FoamFile
 }
 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
+phases (water vapour);
+
 phaseChangeTwoPhaseMixture SchnerrSauer;
 
 pSat             pSat       [1 -1 -2 0 0]    2300;   // saturation pressure
 
 sigma           sigma [1 0 -2 0 0 0 0] 0.07;
 
-phase1
+water
 {
     transportModel Newtonian;
     nu              nu [0 2 -1 0 0 0 0] 9e-07;
     rho             rho [1 -3 0 0 0 0 0] 1000;
 }
 
-phase2
+vapour
 {
     transportModel Newtonian;
     nu              nu [0 2 -1 0 0 0 0] 4.273e-04;
diff --git a/tutorials/multiphase/interPhaseChangeDyMFoam/propeller/system/fvSchemes b/tutorials/multiphase/interPhaseChangeDyMFoam/propeller/system/fvSchemes
index 733980447c..e60864d7f5 100644
--- a/tutorials/multiphase/interPhaseChangeDyMFoam/propeller/system/fvSchemes
+++ b/tutorials/multiphase/interPhaseChangeDyMFoam/propeller/system/fvSchemes
@@ -60,7 +60,7 @@ fluxRequired
     default         no;
     p_rgh;
     pcorr;
-    alpha1;
+    alpha.water;
 }
 
 
diff --git a/tutorials/multiphase/interPhaseChangeDyMFoam/propeller/system/fvSolution b/tutorials/multiphase/interPhaseChangeDyMFoam/propeller/system/fvSolution
index 8673ec2625..e7a73630a8 100644
--- a/tutorials/multiphase/interPhaseChangeDyMFoam/propeller/system/fvSolution
+++ b/tutorials/multiphase/interPhaseChangeDyMFoam/propeller/system/fvSolution
@@ -16,7 +16,7 @@ FoamFile
 
 solvers
 {
-    alpha1
+    alpha.water
     {
         cAlpha          0;
         nAlphaCorr      2;
diff --git a/tutorials/multiphase/interPhaseChangeFoam/cavitatingBullet/0/alpha1 b/tutorials/multiphase/interPhaseChangeFoam/cavitatingBullet/0/alpha.water
similarity index 97%
rename from tutorials/multiphase/interPhaseChangeFoam/cavitatingBullet/0/alpha1
rename to tutorials/multiphase/interPhaseChangeFoam/cavitatingBullet/0/alpha.water
index c3754beb68..6ca929b855 100644
--- a/tutorials/multiphase/interPhaseChangeFoam/cavitatingBullet/0/alpha1
+++ b/tutorials/multiphase/interPhaseChangeFoam/cavitatingBullet/0/alpha.water
@@ -11,7 +11,7 @@ FoamFile
     format      ascii;
     class       volScalarField;
     location    "0";
-    object      alpha1;
+    object      alpha.water;
 }
 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
diff --git a/tutorials/multiphase/interPhaseChangeFoam/cavitatingBullet/constant/transportProperties b/tutorials/multiphase/interPhaseChangeFoam/cavitatingBullet/constant/transportProperties
index c78a74d48d..a9e6e6525d 100644
--- a/tutorials/multiphase/interPhaseChangeFoam/cavitatingBullet/constant/transportProperties
+++ b/tutorials/multiphase/interPhaseChangeFoam/cavitatingBullet/constant/transportProperties
@@ -14,20 +14,22 @@ FoamFile
 }
 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
+phases (water vapour);
+
 phaseChangeTwoPhaseMixture SchnerrSauer;
 
 pSat             pSat       [1 -1 -2 0 0]    2300;   // saturation pressure
 
 sigma           sigma [1 0 -2 0 0 0 0] 0.07;
 
-phase1
+water
 {
     transportModel Newtonian;
     nu              nu [0 2 -1 0 0 0 0] 9e-07;
     rho             rho [1 -3 0 0 0 0 0] 1000;
 }
 
-phase2
+vapour
 {
     transportModel Newtonian;
     nu              nu [0 2 -1 0 0 0 0] 4.273e-04;
diff --git a/tutorials/multiphase/interPhaseChangeFoam/cavitatingBullet/system/fvSchemes b/tutorials/multiphase/interPhaseChangeFoam/cavitatingBullet/system/fvSchemes
index 8ddd1fe903..ded24b94b6 100644
--- a/tutorials/multiphase/interPhaseChangeFoam/cavitatingBullet/system/fvSchemes
+++ b/tutorials/multiphase/interPhaseChangeFoam/cavitatingBullet/system/fvSchemes
@@ -56,7 +56,7 @@ fluxRequired
     default              none;
     p_rgh;
     pcorr;
-    alpha1;
+    alpha.water;
 }
 
 // ************************************************************************* //
diff --git a/tutorials/multiphase/interPhaseChangeFoam/cavitatingBullet/system/fvSolution b/tutorials/multiphase/interPhaseChangeFoam/cavitatingBullet/system/fvSolution
index a1f8f8ffd5..41c0ac39c6 100644
--- a/tutorials/multiphase/interPhaseChangeFoam/cavitatingBullet/system/fvSolution
+++ b/tutorials/multiphase/interPhaseChangeFoam/cavitatingBullet/system/fvSolution
@@ -16,7 +16,7 @@ FoamFile
 
 solvers
 {
-    alpha1
+    alpha.water
     {
         cAlpha          0;
         nAlphaCorr      2;
diff --git a/tutorials/multiphase/twoLiquidMixingFoam/lockExchange/0.org/alpha1 b/tutorials/multiphase/twoLiquidMixingFoam/lockExchange/0.org/alpha.sludge
similarity index 97%
rename from tutorials/multiphase/twoLiquidMixingFoam/lockExchange/0.org/alpha1
rename to tutorials/multiphase/twoLiquidMixingFoam/lockExchange/0.org/alpha.sludge
index 65b89ea284..0b43750be0 100644
--- a/tutorials/multiphase/twoLiquidMixingFoam/lockExchange/0.org/alpha1
+++ b/tutorials/multiphase/twoLiquidMixingFoam/lockExchange/0.org/alpha.sludge
@@ -11,7 +11,7 @@ FoamFile
     format      ascii;
     class       volScalarField;
     location    "0";
-    object      alpha1;
+    object      alpha.sludge;
 }
 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
diff --git a/tutorials/multiphase/twoLiquidMixingFoam/lockExchange/constant/transportProperties b/tutorials/multiphase/twoLiquidMixingFoam/lockExchange/constant/transportProperties
index df0c151c83..5c4f2ad6c6 100644
--- a/tutorials/multiphase/twoLiquidMixingFoam/lockExchange/constant/transportProperties
+++ b/tutorials/multiphase/twoLiquidMixingFoam/lockExchange/constant/transportProperties
@@ -18,14 +18,16 @@ FoamFile
 Dab           Dab [0 2 -1 0 0 0 0]     1e-06;
 alphatab      alphatab [0 0 0 0 0 0 0] 1;
 
-phase1
+phases (sludge water);
+
+sludge
 {
     transportModel  Newtonian;
     nu              nu [0 2 -1 0 0 0 0] 1e-06;
     rho             rho [1 -3 0 0 0 0 0] 1000;
 }
 
-phase2
+water
 {
     transportModel  Newtonian;
     nu              nu [0 2 -1 0 0 0 0] 1e-06;
diff --git a/tutorials/multiphase/twoLiquidMixingFoam/lockExchange/system/fvSchemes b/tutorials/multiphase/twoLiquidMixingFoam/lockExchange/system/fvSchemes
index 35930b9203..c4837bb39f 100644
--- a/tutorials/multiphase/twoLiquidMixingFoam/lockExchange/system/fvSchemes
+++ b/tutorials/multiphase/twoLiquidMixingFoam/lockExchange/system/fvSchemes
@@ -31,7 +31,7 @@ divSchemes
     default         none;
 
     div(rho*phi,U)  Gauss linear;
-    div(phi,alpha1) Gauss vanLeer;
+    div(phi,alpha)  Gauss vanLeer;
     div(phi,k)      Gauss limitedLinear 1;
     div((muEff*dev(T(grad(U))))) Gauss linear;
 }
@@ -55,7 +55,7 @@ fluxRequired
 {
     default         no;
     p_rgh;
-    alpha1;
+    alpha.sludge;
 }
 
 
diff --git a/tutorials/multiphase/twoLiquidMixingFoam/lockExchange/system/fvSolution b/tutorials/multiphase/twoLiquidMixingFoam/lockExchange/system/fvSolution
index af87b0880f..6ad387f715 100644
--- a/tutorials/multiphase/twoLiquidMixingFoam/lockExchange/system/fvSolution
+++ b/tutorials/multiphase/twoLiquidMixingFoam/lockExchange/system/fvSolution
@@ -17,7 +17,7 @@ FoamFile
 
 solvers
 {
-    "alpha1.*"
+    "alpha.sludge.*"
     {
         nAlphaSubCycles     2;
         nAlphaCorr          1;
diff --git a/tutorials/multiphase/twoLiquidMixingFoam/lockExchange/system/setFieldsDict b/tutorials/multiphase/twoLiquidMixingFoam/lockExchange/system/setFieldsDict
index 2c45b1faae..12f879946c 100644
--- a/tutorials/multiphase/twoLiquidMixingFoam/lockExchange/system/setFieldsDict
+++ b/tutorials/multiphase/twoLiquidMixingFoam/lockExchange/system/setFieldsDict
@@ -16,7 +16,7 @@ FoamFile
 
 defaultFieldValues
 (
-    volScalarFieldValue alpha1 0
+    volScalarFieldValue alpha.sludge 0
     volVectorFieldValue U (0 0 0)
 );
 
@@ -28,7 +28,7 @@ regions
 
         fieldValues
         (
-            volScalarFieldValue alpha1 1
+            volScalarFieldValue alpha.sludge 1
         );
     }
 );