linearUpwind.C

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/*---------------------------------------------------------------------------*\
  =========                 |
  \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
   \\    /   O peration     |
    \\  /    A nd           | Copyright (C) 2011-2012 OpenFOAM Foundation
     \\/     M anipulation  |
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License
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    FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
    for more details.
 
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#include "linearUpwind.H"
#include "fvMesh.H"
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
template<class Type>
Foam::tmp<Foam::GeometricField<Type, Foam::fvsPatchField, Foam::surfaceMesh> >
Foam::linearUpwind<Type>::correction
(
    const GeometricField<Type, fvPatchField, volMesh>& vf
) const
{
    const fvMesh& mesh = this->mesh();
 
    tmp<GeometricField<Type, fvsPatchField, surfaceMesh> > tsfCorr
    (
        new GeometricField<Type, fvsPatchField, surfaceMesh>
        (
            IOobject
            (
                "linearUpwind::correction(" + vf.name() + ')',
                mesh.time().timeName(),
                mesh,
                IOobject::NO_READ,
                IOobject::NO_WRITE,
                false
            ),
            mesh,
            dimensioned<Type>(vf.name(), vf.dimensions(), pTraits<Type>::zero)
        )
    );
 
    GeometricField<Type, fvsPatchField, surfaceMesh>& sfCorr = tsfCorr();
 
    const surfaceScalarField& faceFlux = this->faceFlux_;
 
    const labelList& owner = mesh.owner();
    const labelList& neighbour = mesh.neighbour();
 
    const volVectorField& C = mesh.C();
    const surfaceVectorField& Cf = mesh.Cf();
 
    tmp
    <
        GeometricField
        <
            typename outerProduct<vector, Type>::type,
            fvPatchField,
            volMesh
        >
    > tgradVf = gradScheme_().grad(vf, gradSchemeName_);
 
    const GeometricField
    <
        typename outerProduct<vector, Type>::type,
        fvPatchField,
        volMesh
    >& gradVf = tgradVf();
 
    forAll(faceFlux, facei)
    {
        label celli = (faceFlux[facei] > 0) ? owner[facei] : neighbour[facei];
        sfCorr[facei] = (Cf[facei] - C[celli]) & gradVf[celli];
    }
 
 
    typename GeometricField<Type, fvsPatchField, surfaceMesh>::
        GeometricBoundaryField& bSfCorr = sfCorr.boundaryField();
 
    forAll(bSfCorr, patchi)
    {
        fvsPatchField<Type>& pSfCorr = bSfCorr[patchi];
 
        if (pSfCorr.coupled())
        {
            const labelUList& pOwner =
                mesh.boundary()[patchi].faceCells();
 
            const vectorField& pCf = Cf.boundaryField()[patchi];
 
            const scalarField& pFaceFlux = faceFlux.boundaryField()[patchi];
 
            const Field<typename outerProduct<vector, Type>::type> pGradVfNei
            (
                gradVf.boundaryField()[patchi].patchNeighbourField()
            );
 
            // Build the d-vectors
            vectorField pd(Cf.boundaryField()[patchi].patch().delta());
 
            forAll(pOwner, facei)
            {
                label own = pOwner[facei];
 
                if (pFaceFlux[facei] > 0)
                {
                    pSfCorr[facei] = (pCf[facei] - C[own]) & gradVf[own];
                }
                else
                {
                    pSfCorr[facei] =
                        (pCf[facei] - pd[facei] - C[own]) & pGradVfNei[facei];
                }
            }
        }
    }
 
    return tsfCorr;
}
 
 
namespace Foam
{
    //makelimitedSurfaceInterpolationScheme(linearUpwind)
    makelimitedSurfaceInterpolationTypeScheme(linearUpwind, scalar)
    makelimitedSurfaceInterpolationTypeScheme(linearUpwind, vector)
}
 
// ************************************************************************* //