fvPatchDistWave.C

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#include "fvPatchDistWave.H"
#include "nonConformalFvPatch.H"

// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //

Foam::List<Foam::labelPair> Foam::fvPatchDistWave::getChangedPatchAndFaces
(
    const fvMesh& mesh,
    const labelHashSet& patchIDs,
    const scalar minFaceFraction
)
{
    label nChangedFaces = 0;
    forAllConstIter(labelHashSet, patchIDs, iter)
    {
        nChangedFaces += mesh.boundary()[iter.key()].size();
    }

    List<labelPair> changedPatchAndFaces(nChangedFaces);

    label changedFacei = 0;
    forAllConstIter(labelHashSet, patchIDs, iter)
    {
        const label patchi = iter.key();
        const fvPatch& patch = mesh.boundary()[patchi];

        if (isA<nonConformalFvPatch>(patch))
        {
            FatalErrorInFunction
                << "Cannot initialise a patch distance wave from a "
                << "non-conformal patch" << exit(FatalError);
        }

        forAll(patch, patchFacei)
        {
            const scalar faceFraction =
                patch.magSf()[patchFacei]
               /patch.patch().magFaceAreas()[patchFacei];

            if (faceFraction < minFaceFraction) continue;

            changedPatchAndFaces[changedFacei] = labelPair(patchi, patchFacei);
            changedFacei++;
        }
    }

    changedPatchAndFaces.resize(changedFacei);

    return changedPatchAndFaces;
}


// ************************************************************************* //