diff --git a/src/finiteVolume/fields/fvPatchFields/derived/outletPhaseMeanVelocity/outletPhaseMeanVelocityFvPatchVectorField.C b/src/finiteVolume/fields/fvPatchFields/derived/outletPhaseMeanVelocity/outletPhaseMeanVelocityFvPatchVectorField.C
new file mode 100644
index 0000000000..abf782bc90
--- /dev/null
+++ b/src/finiteVolume/fields/fvPatchFields/derived/outletPhaseMeanVelocity/outletPhaseMeanVelocityFvPatchVectorField.C
@@ -0,0 +1,188 @@
+/*---------------------------------------------------------------------------*\
+  =========                 |
+  \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
+   \\    /   O peration     |
+    \\  /    A nd           | Copyright (C) 2013 OpenFOAM Foundation
+     \\/     M anipulation  |
+-------------------------------------------------------------------------------
+License
+    This file is part of OpenFOAM.
+
+    OpenFOAM is free software: you can redistribute it and/or modify it
+    under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+    for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with OpenFOAM.  If not, see <http://www.gnu.org/licenses/>.
+
+\*---------------------------------------------------------------------------*/
+
+#include "outletPhaseMeanVelocityFvPatchVectorField.H"
+#include "volFields.H"
+#include "addToRunTimeSelectionTable.H"
+#include "fvPatchFieldMapper.H"
+#include "surfaceFields.H"
+
+// * * * * * * * * * * * * * * * * Constructors  * * * * * * * * * * * * * * //
+
+Foam::outletPhaseMeanVelocityFvPatchVectorField
+::outletPhaseMeanVelocityFvPatchVectorField
+(
+    const fvPatch& p,
+    const DimensionedField<vector, volMesh>& iF
+)
+:
+    mixedFvPatchField<vector>(p, iF),
+    Umean_(0),
+    alphaName_("none")
+{
+    refValue() = vector::zero;
+    refGrad() = vector::zero;
+    valueFraction() = 0.0;
+}
+
+
+Foam::outletPhaseMeanVelocityFvPatchVectorField
+::outletPhaseMeanVelocityFvPatchVectorField
+(
+    const outletPhaseMeanVelocityFvPatchVectorField& ptf,
+    const fvPatch& p,
+    const DimensionedField<vector, volMesh>& iF,
+    const fvPatchFieldMapper& mapper
+)
+:
+    mixedFvPatchField<vector>(ptf, p, iF, mapper),
+    Umean_(ptf.Umean_),
+    alphaName_(ptf.alphaName_)
+{}
+
+
+Foam::outletPhaseMeanVelocityFvPatchVectorField
+::outletPhaseMeanVelocityFvPatchVectorField
+(
+    const fvPatch& p,
+    const DimensionedField<vector, volMesh>& iF,
+    const dictionary& dict
+)
+:
+    mixedFvPatchField<vector>(p, iF),
+    Umean_(readScalar(dict.lookup("Umean"))),
+    alphaName_(dict.lookup("alpha"))
+{
+    refValue() = vector::zero;
+    refGrad() = vector::zero;
+    valueFraction() = 0.0;
+
+    if (dict.found("value"))
+    {
+        fvPatchVectorField::operator=
+        (
+            vectorField("value", dict, p.size())
+        );
+    }
+    else
+    {
+        fvPatchVectorField::operator=(patchInternalField());
+    }
+}
+
+
+Foam::outletPhaseMeanVelocityFvPatchVectorField
+::outletPhaseMeanVelocityFvPatchVectorField
+(
+    const outletPhaseMeanVelocityFvPatchVectorField& ptf
+)
+:
+    mixedFvPatchField<vector>(ptf),
+    Umean_(ptf.Umean_),
+    alphaName_(ptf.alphaName_)
+{}
+
+
+Foam::outletPhaseMeanVelocityFvPatchVectorField
+::outletPhaseMeanVelocityFvPatchVectorField
+(
+    const outletPhaseMeanVelocityFvPatchVectorField& ptf,
+    const DimensionedField<vector, volMesh>& iF
+)
+:
+    mixedFvPatchField<vector>(ptf, iF),
+    Umean_(ptf.Umean_),
+    alphaName_(ptf.alphaName_)
+{}
+
+
+// * * * * * * * * * * * * * * * Member Functions  * * * * * * * * * * * * * //
+
+void Foam::outletPhaseMeanVelocityFvPatchVectorField::updateCoeffs()
+{
+    if (updated())
+    {
+        return;
+    }
+
+    scalarField alphap =
+        patch().lookupPatchField<volScalarField, scalar>(alphaName_);
+
+    alphap = max(alphap, scalar(0));
+    alphap = min(alphap, scalar(1));
+
+    // Get the patchInternalField (zero-gradient field)
+    vectorField Uzg(patchInternalField());
+
+    // Calculate the phase mean zero-gradient velocity
+    scalar Uzgmean =
+        gSum(alphap*(patch().Sf() & Uzg))
+       /gSum(alphap*patch().magSf());
+
+    // Set the refValue and valueFraction to adjust the boundary field
+    // such that the phase mean is Umean_
+    if (Uzgmean >= Umean_)
+    {
+        refValue() = vector::zero;
+        valueFraction() = 1.0 - Umean_/Uzgmean;
+    }
+    else
+    {
+        refValue() = (Umean_ + Uzgmean)*patch().nf();
+        valueFraction() = 1.0 - Uzgmean/Umean_;
+    }
+
+    mixedFvPatchField<vector>::updateCoeffs();
+}
+
+
+void Foam::outletPhaseMeanVelocityFvPatchVectorField::write
+(
+    Ostream& os
+) const
+{
+    fvPatchField<vector>::write(os);
+
+    os.writeKeyword("Umean") << Umean_
+        << token::END_STATEMENT << nl;
+    os.writeKeyword("alpha") << alphaName_
+        << token::END_STATEMENT << nl;
+    writeEntry("value", os);
+}
+
+
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+namespace Foam
+{
+   makePatchTypeField
+   (
+       fvPatchVectorField,
+       outletPhaseMeanVelocityFvPatchVectorField
+   );
+}
+
+
+// ************************************************************************* //
diff --git a/src/finiteVolume/fields/fvPatchFields/derived/outletPhaseMeanVelocity/outletPhaseMeanVelocityFvPatchVectorField.H b/src/finiteVolume/fields/fvPatchFields/derived/outletPhaseMeanVelocity/outletPhaseMeanVelocityFvPatchVectorField.H
new file mode 100644
index 0000000000..5e5dec0213
--- /dev/null
+++ b/src/finiteVolume/fields/fvPatchFields/derived/outletPhaseMeanVelocity/outletPhaseMeanVelocityFvPatchVectorField.H
@@ -0,0 +1,197 @@
+/*---------------------------------------------------------------------------*\
+  =========                 |
+  \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
+   \\    /   O peration     |
+    \\  /    A nd           | Copyright (C) 2013 OpenFOAM Foundation
+     \\/     M anipulation  |
+-------------------------------------------------------------------------------
+License
+    This file is part of OpenFOAM.
+
+    OpenFOAM is free software: you can redistribute it and/or modify it
+    under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
+    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+    FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+    for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with OpenFOAM.  If not, see <http://www.gnu.org/licenses/>.
+
+Class
+    Foam::outletPhaseMeanVelocityFvPatchVectorField
+
+Group
+    grpOutletBoundaryConditions
+
+Description
+    This boundary condition adjusts the velocity for the given phase to achieve
+    the specified mean thus causing the phase-fraction to adjust according to
+    the mass flow rate.
+
+    Typical usage is as the outlet condition for a towing-tank ship simulation
+    to maintain the outlet water level at the level as the inlet.
+
+    \heading Patch usage
+    \table
+        Property     | Description             | Required    | Default value
+        Umean        | mean velocity normal to the boundary [m/s] | yes |
+        alpha        | phase-fraction field    | yes |
+    \endtable
+
+    Example of the boundary condition specification:
+    \verbatim
+    myPatch
+    {
+        type            outletPhaseMeanVelocity;
+        Umean           1.2;
+        alpha           alpha.water;
+        value           uniform (1.2 0 0);
+    }
+    \endverbatim
+
+SeeAlso
+    Foam::mixedFvPatchField
+    Foam::variableHeightFlowRateInletVelocityFvPatchVectorField
+
+SourceFiles
+    outletPhaseMeanVelocityFvPatchVectorField.C
+
+\*---------------------------------------------------------------------------*/
+
+#ifndef outletPhaseMeanVelocityFvPatchVectorField_H
+#define outletPhaseMeanVelocityFvPatchVectorField_H
+
+#include "mixedFvPatchFields.H"
+
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+namespace Foam
+{
+/*---------------------------------------------------------------------------*\
+    Class outletPhaseMeanVelocityFvPatchVectorField Declaration
+\*---------------------------------------------------------------------------*/
+
+class outletPhaseMeanVelocityFvPatchVectorField
+:
+    public mixedFvPatchVectorField
+{
+    // Private data
+
+        //- Inlet integral flow rate
+        scalar Umean_;
+
+        //- Name of the phase-fraction field
+        word alphaName_;
+
+
+public:
+
+   //- Runtime type information
+   TypeName("outletPhaseMeanVelocity");
+
+
+   // Constructors
+
+        //- Construct from patch and internal field
+        outletPhaseMeanVelocityFvPatchVectorField
+        (
+            const fvPatch&,
+            const DimensionedField<vector, volMesh>&
+        );
+
+        //- Construct from patch, internal field and dictionary
+        outletPhaseMeanVelocityFvPatchVectorField
+        (
+            const fvPatch&,
+            const DimensionedField<vector, volMesh>&,
+            const dictionary&
+        );
+
+        //- Construct by mapping given
+        //  outletPhaseMeanVelocityFvPatchVectorField
+        //  onto a new patch
+        outletPhaseMeanVelocityFvPatchVectorField
+        (
+            const outletPhaseMeanVelocityFvPatchVectorField&,
+            const fvPatch&,
+            const DimensionedField<vector, volMesh>&,
+            const fvPatchFieldMapper&
+        );
+
+        //- Construct as copy
+        outletPhaseMeanVelocityFvPatchVectorField
+        (
+            const outletPhaseMeanVelocityFvPatchVectorField&
+        );
+
+        //- Construct and return a clone
+        virtual tmp<fvPatchVectorField> clone() const
+        {
+            return tmp<fvPatchVectorField>
+            (
+                new outletPhaseMeanVelocityFvPatchVectorField(*this)
+            );
+        }
+
+        //- Construct as copy setting internal field reference
+        outletPhaseMeanVelocityFvPatchVectorField
+        (
+            const outletPhaseMeanVelocityFvPatchVectorField&,
+            const DimensionedField<vector, volMesh>&
+        );
+
+        //- Construct and return a clone setting internal field reference
+        virtual tmp<fvPatchVectorField> clone
+        (
+            const DimensionedField<vector, volMesh>& iF
+        ) const
+        {
+            return tmp<fvPatchVectorField>
+            (
+                new outletPhaseMeanVelocityFvPatchVectorField
+                (
+                    *this,
+                    iF
+                )
+            );
+        }
+
+
+    // Member functions
+
+        // Access
+
+            //- Return the flux
+            scalar Umean() const
+            {
+                return Umean_;
+            }
+
+            //- Return reference to the flux to allow adjustment
+            scalar& Umean()
+            {
+                return Umean_;
+            }
+
+
+        //- Update the coefficients associated with the patch field
+        virtual void updateCoeffs();
+
+        //- Write
+        virtual void write(Ostream&) const;
+};
+
+
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+} // End namespace Foam
+
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+#endif
+
+// ************************************************************************* //