gaussConvectionScheme.C

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/*---------------------------------------------------------------------------*\
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    Copyright (C) 2011-2016 OpenFOAM Foundation
-------------------------------------------------------------------------------
License
    This file is part of OpenFOAM.

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#include "gaussConvectionScheme.H"
#include "fvcSurfaceIntegrate.H"
#include "fvMatrices.H"

// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //

namespace Foam
{

// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //

namespace fv
{

// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //

template<class Type>
const surfaceInterpolationScheme<Type>&
gaussConvectionScheme<Type>::interpScheme() const
{
    return tinterpScheme_();
}


template<class Type>
tmp<GeometricField<Type, fvsPatchField, surfaceMesh>>
gaussConvectionScheme<Type>::interpolate
(
    const surfaceScalarField&,
    const GeometricField<Type, fvPatchField, volMesh>& vf
) const
{
    return tinterpScheme_().interpolate(vf);
}


template<class Type>
tmp<GeometricField<Type, fvsPatchField, surfaceMesh>>
gaussConvectionScheme<Type>::flux
(
    const surfaceScalarField& faceFlux,
    const GeometricField<Type, fvPatchField, volMesh>& vf
) const
{
    return faceFlux*interpolate(faceFlux, vf);
}


template<class Type>
tmp<fvMatrix<Type>>
gaussConvectionScheme<Type>::fvmDiv
(
    const surfaceScalarField& faceFlux,
    const GeometricField<Type, fvPatchField, volMesh>& vf
) const
{
    tmp<surfaceScalarField> tweights = tinterpScheme_().weights(vf);
    const surfaceScalarField& weights = tweights();

    tmp<fvMatrix<Type>> tfvm
    (
        new fvMatrix<Type>
        (
            vf,
            faceFlux.dimensions()*vf.dimensions()
        )
    );
    fvMatrix<Type>& fvm = tfvm.ref();

    fvm.lower() = -weights.primitiveField()*faceFlux.primitiveField();
    fvm.upper() = fvm.lower() + faceFlux.primitiveField();
    fvm.negSumDiag();

    forAll(vf.boundaryField(), patchi)
    {
        const fvPatchField<Type>& psf = vf.boundaryField()[patchi];
        const fvsPatchScalarField& patchFlux = faceFlux.boundaryField()[patchi];
        const fvsPatchScalarField& pw = weights.boundaryField()[patchi];

        fvm.internalCoeffs()[patchi] = patchFlux*psf.valueInternalCoeffs(pw);
        fvm.boundaryCoeffs()[patchi] = -patchFlux*psf.valueBoundaryCoeffs(pw);
    }

    if (tinterpScheme_().corrected())
    {
        fvm += fvc::surfaceIntegrate(faceFlux*tinterpScheme_().correction(vf));
    }

    return tfvm;
}


template<class Type>
tmp<GeometricField<Type, fvPatchField, volMesh>>
gaussConvectionScheme<Type>::fvcDiv
(
    const surfaceScalarField& faceFlux,
    const GeometricField<Type, fvPatchField, volMesh>& vf
) const
{
    tmp<GeometricField<Type, fvPatchField, volMesh>> tConvection
    (
        fvc::surfaceIntegrate(flux(faceFlux, vf))
    );

    tConvection.ref().rename
    (
        "convection(" + faceFlux.name() + ',' + vf.name() + ')'
    );

    return tConvection;
}


// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //

} // End namespace fv

// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //

} // End namespace Foam

// ************************************************************************* //