CFCCellToCellStencil.C

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    Copyright (C) 2011-2016 OpenFOAM Foundation
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License
    This file is part of OpenFOAM.
 
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#include "CFCCellToCellStencil.H"
#include "syncTools.H"
#include "emptyPolyPatch.H"
 
// * * * * * * * * * * * * * Private Member Functions  * * * * * * * * * * * //
 
void Foam::CFCCellToCellStencil::calcFaceBoundaryData
(
    labelList& neiGlobal
) const
{
    const polyBoundaryMesh& patches = mesh().boundaryMesh();
    const label nBnd = mesh().nBoundaryFaces();
    const labelList& own = mesh().faceOwner();
 
    neiGlobal.setSize(nBnd);
 
    forAll(patches, patchi)
    {
        const polyPatch& pp = patches[patchi];
        label facei = pp.start();
 
        if (pp.coupled())
        {
            // For coupled faces get the cell on the other side
            forAll(pp, i)
            {
                label bFacei = facei-mesh().nInternalFaces();
                neiGlobal[bFacei] = globalNumbering().toGlobal(own[facei]);
                facei++;
            }
        }
        else if (isA<emptyPolyPatch>(pp))
        {
            forAll(pp, i)
            {
                label bFacei = facei-mesh().nInternalFaces();
                neiGlobal[bFacei] = -1;
                facei++;
            }
        }
        else
        {
            // For noncoupled faces get the boundary face.
            forAll(pp, i)
            {
                label bFacei = facei-mesh().nInternalFaces();
                neiGlobal[bFacei] =
                    globalNumbering().toGlobal(mesh().nCells()+bFacei);
                facei++;
            }
        }
    }
    syncTools::swapBoundaryFaceList(mesh(), neiGlobal);
}
 
 
void Foam::CFCCellToCellStencil::calcCellStencil
(
    labelListList& globalCellCells
) const
{
    const label nBnd = mesh().nBoundaryFaces();
    const labelList& own = mesh().faceOwner();
    const labelList& nei = mesh().faceNeighbour();
 
 
    // Calculate coupled neighbour (in global numbering)
    // ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 
    labelList neiGlobal(nBnd);
    calcFaceBoundaryData(neiGlobal);
 
 
    // Determine cellCells in global numbering
    // ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 
    globalCellCells.setSize(mesh().nCells());
    forAll(globalCellCells, celli)
    {
        const cell& cFaces = mesh().cells()[celli];
 
        labelList& cCells = globalCellCells[celli];
 
        cCells.setSize(cFaces.size()+1);
 
        label nNbr = 0;
 
        // Myself
        cCells[nNbr++] = globalNumbering().toGlobal(celli);
 
        // Collect neighbouring cells/faces
        forAll(cFaces, i)
        {
            label facei = cFaces[i];
 
            if (mesh().isInternalFace(facei))
            {
                label nbrCelli = own[facei];
                if (nbrCelli == celli)
                {
                    nbrCelli = nei[facei];
                }
                cCells[nNbr++] = globalNumbering().toGlobal(nbrCelli);
            }
            else
            {
                label nbrCelli = neiGlobal[facei-mesh().nInternalFaces()];
                if (nbrCelli != -1)
                {
                    cCells[nNbr++] = nbrCelli;
                }
            }
        }
        cCells.setSize(nNbr);
    }
}
 
 
// * * * * * * * * * * * * * * * * Constructors  * * * * * * * * * * * * * * //
 
Foam::CFCCellToCellStencil::CFCCellToCellStencil(const polyMesh& mesh)
:
    cellToCellStencil(mesh)
{
    // Calculate per cell the (face) connected cells (in global numbering)
    calcCellStencil(*this);
}
 
 
// ************************************************************************* //