extendedCellToFaceStencilTemplates.C

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#include "extendedCellToFaceStencil.H"
 
// * * * * * * * * * * * * * * * Member Functions  * * * * * * * * * * * * * //
 
template<class Type>
void Foam::extendedCellToFaceStencil::collectData
(
    const distributionMap& map,
    const labelListList& stencil,
    const VolField<Type>& fld,
    List<List<Type>>& stencilFld
)
{
    // 1. Construct cell data in compact addressing
    List<Type> flatFld(map.constructSize(), Zero);
 
    // Insert my internal values
    forAll(fld, celli)
    {
        flatFld[celli] = fld[celli];
    }
    // Insert my boundary values
    forAll(fld.boundaryField(), patchi)
    {
        const fvPatchField<Type>& pfld = fld.boundaryField()[patchi];
 
        label nCompact =
            pfld.patch().start()
           -fld.mesh().nInternalFaces()
           +fld.mesh().nCells();
 
        forAll(pfld, i)
        {
            flatFld[nCompact++] = pfld[i];
        }
    }
 
    // Do all swapping
    map.distribute(flatFld);
 
    // 2. Pull to stencil
    stencilFld.setSize(stencil.size());
 
    forAll(stencil, facei)
    {
        const labelList& compactCells = stencil[facei];
 
        stencilFld[facei].setSize(compactCells.size());
 
        forAll(compactCells, i)
        {
            stencilFld[facei][i] = flatFld[compactCells[i]];
        }
    }
}
 
 
template<class Type>
Foam::tmp<Foam::SurfaceField<Type>>
Foam::extendedCellToFaceStencil::weightedSum
(
    const distributionMap& map,
    const labelListList& stencil,
    const VolField<Type>& fld,
    const List<List<scalar>>& stencilWeights
)
{
    const fvMesh& mesh = fld.mesh();
 
    // Collect internal and boundary values
    List<List<Type>> stencilFld;
    collectData(map, stencil, fld, stencilFld);
 
    tmp<SurfaceField<Type>> tsfCorr
    (
        SurfaceField<Type>::New
        (
            fld.name(),
            mesh,
            dimensioned<Type>
            (
                fld.name(),
                fld.dimensions(),
                Zero
            )
        )
    );
    SurfaceField<Type>& sf = tsfCorr.ref();
 
    // Internal faces
    for (label facei = 0; facei < mesh.nInternalFaces(); facei++)
    {
        const List<Type>& stField = stencilFld[facei];
        const List<scalar>& stWeight = stencilWeights[facei];
 
        forAll(stField, i)
        {
            sf[facei] += stField[i]*stWeight[i];
        }
    }
 
    // Boundaries. Either constrained or calculated so assign value
    // directly (instead of nicely using operator==)
    typename SurfaceField<Type>::
        Boundary& bSfCorr = sf.boundaryFieldRef();
 
    forAll(bSfCorr, patchi)
    {
        fvsPatchField<Type>& pSfCorr = bSfCorr[patchi];
 
        if (pSfCorr.coupled())
        {
            label facei = pSfCorr.patch().start();
 
            forAll(pSfCorr, i)
            {
                const List<Type>& stField = stencilFld[facei];
                const List<scalar>& stWeight = stencilWeights[facei];
 
                forAll(stField, j)
                {
                    pSfCorr[i] += stField[j]*stWeight[j];
                }
 
                facei++;
            }
        }
    }
 
    return tsfCorr;
}
 
 
// ************************************************************************* //