gaussConvectionScheme.C

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-------------------------------------------------------------------------------
License
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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<SurfaceField<Type>>
gaussConvectionScheme<Type>::interpolate
(
    const surfaceScalarField&,
    const VolField<Type>& vf
) const
{
    return tinterpScheme_().interpolate(vf);
}
 
 
template<class Type>
tmp<SurfaceField<Type>>
gaussConvectionScheme<Type>::flux
(
    const surfaceScalarField& faceFlux,
    const VolField<Type>& vf
) const
{
    return faceFlux*interpolate(faceFlux, vf);
}
 
 
template<class Type>
tmp<fvMatrix<Type>>
gaussConvectionScheme<Type>::fvmDiv
(
    const surfaceScalarField& faceFlux,
    const VolField<Type>& 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())
    {
        tmp<SurfaceField<Type>> tfaceFluxCorrection
        (
            faceFlux*tinterpScheme_().correction(vf)
        );
 
        fvm += fvc::surfaceIntegrate(tfaceFluxCorrection());
 
        if (vf.mesh().schemes().fluxRequired(vf.name()))
        {
            fvm.faceFluxCorrectionPtr() = tfaceFluxCorrection.ptr();
        }
    }
 
    return tfvm;
}
 
 
template<class Type>
tmp<VolField<Type>>
gaussConvectionScheme<Type>::fvcDiv
(
    const surfaceScalarField& faceFlux,
    const VolField<Type>& vf
) const
{
    tmp<VolField<Type>> tConvection
    (
        fvc::surfaceIntegrate(flux(faceFlux, vf))
    );
 
    tConvection.ref().rename
    (
        "convection(" + faceFlux.name() + ',' + vf.name() + ')'
    );
 
    return tConvection;
}
 
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
} // End namespace fv
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
} // End namespace Foam
 
// ************************************************************************* //