7d192447f0
To be used instead of zeroGradientFvPatchField for temporary fields for which zero-gradient extrapolation is use to evaluate the boundary field but avoiding fields derived from temporary field using field algebra inheriting the zeroGradient boundary condition by the reuse of the temporary field storage. zeroGradientFvPatchField should not be used as the default patch field for any temporary fields and should be avoided for non-temporary fields except where it is clearly appropriate; extrapolatedCalculatedFvPatchField and calculatedFvPatchField are generally more suitable defaults depending on the manner in which the boundary values are specified or evaluated. The entire OpenFOAM-dev code-base has been updated following the above recommendations. Henry G. Weller CFD Direct
121 lines
3.8 KiB
C
121 lines
3.8 KiB
C
/*---------------------------------------------------------------------------*\
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========= |
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\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
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\\ / O peration |
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\\ / A nd | Copyright (C) 2013-2016 OpenFOAM Foundation
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\\/ M anipulation |
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-------------------------------------------------------------------------------
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License
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This file is part of OpenFOAM.
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OpenFOAM is free software: you can redistribute it and/or modify it
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under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
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ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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for more details.
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You should have received a copy of the GNU General Public License
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along with OpenFOAM. If not, see <http://www.gnu.org/licenses/>.
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\*---------------------------------------------------------------------------*/
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#include "gaussConvectionScheme.H"
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#include "blendedSchemeBase.H"
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#include "fvcCellReduce.H"
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#include "zeroGradientFvPatchFields.H"
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// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
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template<class Type>
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Foam::volScalarField& Foam::blendingFactor::factor
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(
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const GeometricField<Type, fvPatchField, volMesh>& field
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)
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{
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const word fieldName = "blendingFactor:" + field.name();
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if (!obr_.foundObject<volScalarField>(fieldName))
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{
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const fvMesh& mesh = refCast<const fvMesh>(obr_);
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volScalarField* factorPtr =
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new volScalarField
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(
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IOobject
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(
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fieldName,
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mesh.time().timeName(),
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mesh,
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IOobject::NO_READ,
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IOobject::NO_WRITE
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),
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mesh,
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dimensionedScalar("0", dimless, 0.0),
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zeroGradientFvPatchScalarField::typeName
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);
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obr_.store(factorPtr);
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}
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return
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const_cast<volScalarField&>
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(
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obr_.lookupObject<volScalarField>(fieldName)
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);
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}
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template<class Type>
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void Foam::blendingFactor::calc()
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{
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typedef GeometricField<Type, fvPatchField, volMesh> fieldType;
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if (!obr_.foundObject<fieldType>(fieldName_))
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{
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return;
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}
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const fvMesh& mesh = refCast<const fvMesh>(obr_);
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const fieldType& field = mesh.lookupObject<fieldType>(fieldName_);
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const word divScheme("div(" + phiName_ + ',' + fieldName_ + ')');
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ITstream& its = mesh.divScheme(divScheme);
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const surfaceScalarField& phi =
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mesh.lookupObject<surfaceScalarField>(phiName_);
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tmp<fv::convectionScheme<Type>> cs =
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fv::convectionScheme<Type>::New(mesh, phi, its);
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const fv::gaussConvectionScheme<Type>& gcs =
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refCast<const fv::gaussConvectionScheme<Type>>(cs());
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const surfaceInterpolationScheme<Type>& interpScheme =
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gcs.interpScheme();
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if (!isA<blendedSchemeBase<Type>>(interpScheme))
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{
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FatalErrorInFunction
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<< interpScheme.typeName << " is not a blended scheme"
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<< exit(FatalError);
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}
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// retrieve the face-based blending factor
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const blendedSchemeBase<Type>& blendedScheme =
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refCast<const blendedSchemeBase<Type>>(interpScheme);
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const surfaceScalarField factorf(blendedScheme.blendingFactor(field));
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// convert into vol field whose values represent the local face maxima
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volScalarField& factor = this->factor(field);
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factor = fvc::cellReduce(factorf, maxEqOp<scalar>());
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factor.correctBoundaryConditions();
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}
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// ************************************************************************* //
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