functionObjects::blendingFactor: simplified, standardized, rationalized

src/postProcessing/functionObjects/field/Make/files

@@ -41,5 +41,6 @@ Q/Q.C
 Lambda2/Lambda2.C
 CourantNo/CourantNo.C
 PecletNo/PecletNo.C
+blendingFactor/blendingFactor.C
 
 LIB = $(FOAM_LIBBIN)/libfieldFunctionObjects

src/postProcessing/functionObjects/field/blendingFactor/blendingFactor.C

@@ -24,7 +24,6 @@ License
 \*---------------------------------------------------------------------------*/
 
 #include "blendingFactor.H"
-#include "volFields.H"
 #include "addToRunTimeSelectionTable.H"
 
 // * * * * * * * * * * * * * * Static Data Members * * * * * * * * * * * * * //
@@ -48,7 +47,7 @@ Foam::functionObjects::blendingFactor::blendingFactor
     const dictionary& dict
 )
 :
-    fvMeshFunctionObject(name, runTime, dict)
+    fieldExpression(name, runTime, dict)
 {
     read(dict);
 }
@@ -64,8 +63,11 @@ Foam::functionObjects::blendingFactor::~blendingFactor()
 
 bool Foam::functionObjects::blendingFactor::read(const dictionary& dict)
 {
+    fieldExpression::read(dict);
+
     phiName_ = dict.lookupOrDefault<word>("phi", "phi");
-    dict.lookup("field") >> fieldName_;
+
+    resultName_ = "blendingFactor:" + fieldName_;
 
     return true;
 }
@@ -73,27 +75,18 @@ bool Foam::functionObjects::blendingFactor::read(const dictionary& dict)
 
 bool Foam::functionObjects::blendingFactor::execute(const bool postProcess)
 {
-    calc<scalar>();
-    calc<vector>();
+    bool processed = false;
 
-    return true;
-}
+    processed = processed || calc<scalar>();
+    processed = processed || calc<vector>();
 
+    if (!processed)
+    {
+        WarningInFunction
+            << "Unprocessed field " << fieldName_ << endl;
+    }
 
-bool Foam::functionObjects::blendingFactor::write(const bool postProcess)
-{
-    const word fieldName = "blendingFactor:" + fieldName_;
-
-    const volScalarField& blendingFactor =
-        obr_.lookupObject<volScalarField>(fieldName);
-
-    Info<< type() << " " << name() << " output:" << nl
-        << "    writing field " << blendingFactor.name() << nl
-        << endl;
-
-    blendingFactor.write();
-
-    return true;
+    return processed;
 }
 
 

src/postProcessing/functionObjects/field/blendingFactor/blendingFactor.H

@@ -33,6 +33,7 @@ Description
     value is calculated via the maximum blending factor for any cell face.
 
 SeeAlso
+    Foam::functionObjects::fieldExpression
     Foam::functionObjects::fvMeshFunctionObject
 
 SourceFiles
@@ -43,17 +44,12 @@ SourceFiles
 #ifndef functionObjects_blendingFactor_H
 #define functionObjects_blendingFactor_H
 
-#include "fvMeshFunctionObject.H"
-#include "volFieldsFwd.H"
+#include "fieldExpression.H"
 
 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
 namespace Foam
 {
-
-// Forward declaration of classes
-class objectRegistry;
-
 namespace functionObjects
 {
 
@@ -63,35 +59,19 @@ namespace functionObjects
 
 class blendingFactor
 :
-    public fvMeshFunctionObject
+    public fieldExpression
 {
     // Private data
 
         //- Name of flux field, default is "phi"
         word phiName_;
 
-        //- Field name
-        word fieldName_;
-
 
     // Private Member Functions
 
-        //- Disallow default bitwise copy construct
-        blendingFactor(const blendingFactor&);
-
-        //- Disallow default bitwise assignment
-        void operator=(const blendingFactor&);
-
-        //- Return the blending factor field from the database
-        template<class Type>
-        volScalarField& factor
-        (
-            const GeometricField<Type, fvPatchField, volMesh>& field
-        );
-
         //- Calculate the blending factor
         template<class Type>
-        void calc();
+        bool calc();
 
 
 public:
@@ -122,9 +102,6 @@ public:
 
         //- Calculate the blending-factor
         virtual bool execute(const bool postProcess = false);
-
-        //- Write the blending-factor
-        virtual bool write(const bool postProcess = false);
 };
 
 

src/postProcessing/functionObjects/field/blendingFactor/blendingFactorTemplates.C

@@ -26,64 +26,25 @@ License
 #include "gaussConvectionScheme.H"
 #include "blendedSchemeBase.H"
 #include "fvcCellReduce.H"
-#include "zeroGradientFvPatchFields.H"
 
 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
 template<class Type>
-Foam::volScalarField& Foam::functionObjects::blendingFactor::factor
-(
-    const GeometricField<Type, fvPatchField, volMesh>& field
-)
+bool Foam::functionObjects::blendingFactor::calc()
 {
-    const word fieldName = "blendingFactor:" + field.name();
+    typedef GeometricField<Type, fvPatchField, volMesh> FieldType;
 
-    if (!mesh_.foundObject<volScalarField>(fieldName))
+    if (!foundField<FieldType>(fieldName_))
     {
-        volScalarField* factorPtr =
-            new volScalarField
-            (
-                IOobject
-                (
-                    fieldName,
-                    mesh_.time().timeName(),
-                    mesh_,
-                    IOobject::NO_READ,
-                    IOobject::NO_WRITE
-                ),
-                mesh_,
-                dimensionedScalar("0", dimless, 0.0),
-                zeroGradientFvPatchScalarField::typeName
-            );
-
-        obr_.store(factorPtr);
+        return false;
     }
 
-    return
-        const_cast<volScalarField&>
-        (
-            mesh_.lookupObject<volScalarField>(fieldName)
-        );
-}
-
-
-template<class Type>
-void Foam::functionObjects::blendingFactor::calc()
-{
-    typedef GeometricField<Type, fvPatchField, volMesh> fieldType;
-
-    if (!mesh_.foundObject<fieldType>(fieldName_))
-    {
-        return;
-    }
-
-    const fieldType& field = mesh_.lookupObject<fieldType>(fieldName_);
+    const FieldType& field = lookupField<FieldType>(fieldName_);
 
     const word divScheme("div(" + phiName_ + ',' + fieldName_ + ')');
     ITstream& its = mesh_.divScheme(divScheme);
 
-    const surfaceScalarField& phi =
-        mesh_.lookupObject<surfaceScalarField>(phiName_);
+    const surfaceScalarField& phi = lookupField<surfaceScalarField>(phiName_);
 
     tmp<fv::convectionScheme<Type>> cs =
         fv::convectionScheme<Type>::New(mesh_, phi, its);
@@ -101,15 +62,17 @@ void Foam::functionObjects::blendingFactor::calc()
             << exit(FatalError);
     }
 
-    // retrieve the face-based blending factor
+    // Retrieve the face-based blending factor
     const blendedSchemeBase<Type>& blendedScheme =
         refCast<const blendedSchemeBase<Type>>(interpScheme);
-    const surfaceScalarField factorf(blendedScheme.blendingFactor(field));
+    tmp<surfaceScalarField> factorf(blendedScheme.blendingFactor(field));
 
-    // convert into vol field whose values represent the local face maxima
-    volScalarField& factor = this->factor(field);
-    factor = fvc::cellReduce(factorf, maxEqOp<scalar>());
-    factor.correctBoundaryConditions();
+    // Convert into vol field whose values represent the local face maxima
+    return store
+    (
+        resultName_,
+        fvc::cellReduce(factorf, maxEqOp<scalar>())
+    );
 }
 
 

src/postProcessing/functionObjects/utilities/Make/files

@@ -9,7 +9,6 @@ writeDictionary/writeDictionary.C
 writeRegisteredObject/writeRegisteredObject.C
 
 scalarTransport/scalarTransport.C
-blendingFactor/blendingFactor.C
 dsmcFields/dsmcFields.C
 
 turbulenceFields/turbulenceFields.C