src/finiteVolume/interpolation/surfaceInterpolation/limitedSchemes/linearUpwind/linearUpwindV.C

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  14     option) any later version.
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  19     for more details.
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  24
  25 \*---------------------------------------------------------------------------*/
  26
  27 #include "linearUpwindV.H"
  28 #include "fvMesh.H"
  29 #include "volFields.H"
  30 #include "surfaceFields.H"
  31
  32 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
  33
  34 template<class Type>
  35 Foam::tmp<Foam::GeometricField<Type, Foam::fvsPatchField, Foam::surfaceMesh> >
  36 Foam::linearUpwindV<Type>::correction
  37 (
  38     const GeometricField<Type, fvPatchField, volMesh>& vf
  39 ) const
  40 {
  41    const fvMesh& mesh = this->mesh();
  42
  43    tmp<GeometricField<Type, fvsPatchField, surfaceMesh> > tsfCorr
  44    (
  45        new GeometricField<Type, fvsPatchField, surfaceMesh>
  46        (
  47            IOobject
  48            (
  49                vf.name(),
  50                mesh.time().timeName(),
  51                mesh
  52            ),
  53            mesh,
  54            dimensioned<Type>
  55            (
  56                vf.name(),
  57                vf.dimensions(),
  58                pTraits<Type>::zero
  59            )
  60        )
  61    );
  62
  63    GeometricField<Type, fvsPatchField, surfaceMesh>& sfCorr = tsfCorr();
  64
  65    const surfaceScalarField& faceFlux = this->faceFlux_;
  66    const surfaceScalarField& w = mesh.weights();
  67
  68    const labelList& own = mesh.owner();
  69    const labelList& nei = mesh.neighbour();
  70
  71    const vectorField& C = mesh.C();
  72    const vectorField& Cf = mesh.Cf();
  73
  74    GeometricField
  75        <typename outerProduct<vector, Type>::type, fvPatchField, volMesh>
  76        gradVf = gradScheme_().grad(vf);
  77
  78     // Note: in order for the patchNeighbourField to be correct on coupled
  79     // boundaries, correctBoundaryConditions needs to be called.
  80     // The call shall be moved into the library fvc operators
  81     gradVf.correctBoundaryConditions();
  82
  83    forAll(faceFlux, facei)
  84    {
  85        vector maxCorr;
  86
  87        if (faceFlux[facei] > 0.0)
  88        {
  89            maxCorr =
  90                (1.0 - w[facei])
  91                *(vf[nei[facei]] - vf[own[facei]]);
  92
  93            sfCorr[facei] =
  94                (Cf[facei] - C[own[facei]]) & gradVf[own[facei]];
  95        }
  96        else
  97        {
  98            maxCorr =
  99                w[facei]*(vf[own[facei]] - vf[nei[facei]]);
 100
 101            sfCorr[facei] =
 102                (Cf[facei] - C[nei[facei]]) & gradVf[nei[facei]];
 103        }
 104
 105        scalar sfCorrs = magSqr(sfCorr[facei]);
 106        scalar maxCorrs = sfCorr[facei] & maxCorr;
 107
 108        if (sfCorrs > 0)
 109        {
 110            if (maxCorrs < 0)
 111            {
 112                sfCorr[facei] = vector::zero;
 113            }
 114            else if (sfCorrs > maxCorrs)
 115            {
 116                sfCorr[facei] *= maxCorrs/(sfCorrs + VSMALL);
 117            }
 118        }
 119        else if (sfCorrs < 0)
 120        {
 121            if (maxCorrs > 0)
 122            {
 123                sfCorr[facei] = vector::zero;
 124            }
 125            else if (sfCorrs < maxCorrs)
 126            {
 127                sfCorr[facei] *= maxCorrs/(sfCorrs - VSMALL);
 128            }
 129        }
 130    }
 131
 132    return tsfCorr;
 133 }
 134
 135
 136 namespace Foam
 137 {
 138     makelimitedSurfaceInterpolationTypeScheme(linearUpwindV, vector)
 139 }
 140
 141 // ************************************************************************* //