levelSetTemplates.C

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#include "levelSet.H"
#include "cutTriTet.H"
#include "polyMeshTetDecomposition.H"
#include "tetIndices.H"
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
template<class Type>
Foam::tmp<Foam::Field<Type>> Foam::levelSetAverage
(
    const fvMesh& mesh,
    const scalarField& levelC,
    const scalarField& levelP,
    const Field<Type>& positiveC,
    const Field<Type>& positiveP,
    const Field<Type>& negativeC,
    const Field<Type>& negativeP
)
{
    tmp<Field<Type>> tResult(new Field<Type>(mesh.nCells(), Zero));
    Field<Type>& result = tResult.ref();
 
    forAll(result, cI)
    {
        const List<tetIndices> cellTetIs =
            polyMeshTetDecomposition::cellTetIndices(mesh, cI);
 
        scalar v = 0;
        Type r = Zero;
 
        forAll(cellTetIs, cellTetI)
        {
            const triFace triIs = cellTetIs[cellTetI].faceTriIs(mesh);
 
            const FixedList<point, 4>
                tet =
                {
                    mesh.cellCentres()[cI],
                    mesh.points()[triIs[0]],
                    mesh.points()[triIs[1]],
                    mesh.points()[triIs[2]]
                };
            const FixedList<scalar, 4>
                level =
                {
                    levelC[cI],
                    levelP[triIs[0]],
                    levelP[triIs[1]],
                    levelP[triIs[2]]
                };
            const cutTriTet::volumeIntegrateOp<Type>
                positive = FixedList<Type, 4>
                ({
                    positiveC[cI],
                    positiveP[triIs[0]],
                    positiveP[triIs[1]],
                    positiveP[triIs[2]]
                });
            const cutTriTet::volumeIntegrateOp<Type>
                negative = FixedList<Type, 4>
                ({
                    negativeC[cI],
                    negativeP[triIs[0]],
                    negativeP[triIs[1]],
                    negativeP[triIs[2]]
                });
 
            v += cutTriTet::volumeOp()(tet);
 
            r += tetCut(tet, level, positive, negative);
        }
 
        result[cI] = r/v;
    }
 
    return tResult;
}
 
 
template<class Type>
Foam::tmp<Foam::Field<Type>> Foam::levelSetAverage
(
    const fvPatch& patch,
    const scalarField& levelF,
    const scalarField& levelP,
    const Field<Type>& positiveF,
    const Field<Type>& positiveP,
    const Field<Type>& negativeF,
    const Field<Type>& negativeP
)
{
    tmp<Field<Type>> tResult(new Field<Type>(patch.size(), Zero));
    Field<Type>& result = tResult.ref();
 
    forAll(result, fI)
    {
        const face& f = patch.patch().localFaces()[fI];
 
        scalar a = 0;
        Type r = Zero;
 
        for(label eI = 0; eI < f.size(); ++ eI)
        {
            const edge e = f.faceEdge(eI);
 
            const FixedList<point, 3>
                tri =
                {
                    patch.patch().faceCentres()[fI],
                    patch.patch().localPoints()[e[0]],
                    patch.patch().localPoints()[e[1]]
                };
            const FixedList<scalar, 3>
                level =
                {
                    levelF[fI],
                    levelP[e[0]],
                    levelP[e[1]]
                };
            const cutTriTet::areaMagIntegrateOp<Type>
                positive = FixedList<Type, 3>
                ({
                    positiveF[fI],
                    positiveP[e[0]],
                    positiveP[e[1]]
                });
            const cutTriTet::areaMagIntegrateOp<Type>
                negative = FixedList<Type, 3>
                ({
                    negativeF[fI],
                    negativeP[e[0]],
                    negativeP[e[1]]
                });
 
            a += cutTriTet::areaMagOp()(tri);
 
            r += triCut(tri, level, positive, negative);
        }
 
        result[fI] = r/a;
    }
 
    return tResult;
}
 
 
template<class Type>
Foam::tmp<Foam::VolField<Type>>
Foam::levelSetAverage
(
    const volScalarField& levelC,
    const pointScalarField& levelP,
    const VolField<Type>& positiveC,
    const PointField<Type>& positiveP,
    const VolField<Type>& negativeC,
    const PointField<Type>& negativeP
)
{
    const fvMesh& mesh = levelC.mesh();
 
    tmp<VolField<Type>> tResult
    (
        VolField<Type>::New
        (
            positiveC.name() + ":levelSetAverage",
            mesh,
            dimensioned<Type>("0", positiveC.dimensions(), Zero)
        )
    );
    VolField<Type>& result = tResult.ref();
 
    result.primitiveFieldRef() =
        levelSetAverage
        (
            mesh,
            levelC.primitiveField(),
            levelP.primitiveField(),
            positiveC.primitiveField(),
            positiveP.primitiveField(),
            negativeC.primitiveField(),
            negativeP.primitiveField()
        );
 
    forAll(mesh.boundary(), patchi)
    {
        result.boundaryFieldRef()[patchi] =
            levelSetAverage
            (
                mesh.boundary()[patchi],
                levelC.boundaryField()[patchi],
                levelP.boundaryField()[patchi].patchInternalField()(),
                positiveC.boundaryField()[patchi],
                positiveP.boundaryField()[patchi].patchInternalField()(),
                negativeC.boundaryField()[patchi],
                negativeP.boundaryField()[patchi].patchInternalField()()
            );
    }
 
    return tResult;
}
 
 
// ************************************************************************* //