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    forAll(faceFlux, facei)
  79    {
  80        vector maxCorr;
  81
  82        if (faceFlux[facei] > 0.0)
  83        {
  84            maxCorr =
  85                (1.0 - w[facei])
  86                *(vf[nei[facei]] - vf[own[facei]]);
  87
  88            sfCorr[facei] =
  89                (Cf[facei] - C[own[facei]]) & gradVf[own[facei]];
  90        }
  91        else
  92        {
  93            maxCorr =
  94                w[facei]*(vf[own[facei]] - vf[nei[facei]]);
  95
  96            sfCorr[facei] =
  97                (Cf[facei] - C[nei[facei]]) & gradVf[nei[facei]];
  98        }
  99
 100        scalar sfCorrs = magSqr(sfCorr[facei]);
 101        scalar maxCorrs = sfCorr[facei] & maxCorr;
 102
 103        if (sfCorrs > 0)
 104        {
 105            if (maxCorrs < 0)
 106            {
 107                sfCorr[facei] = vector::zero;
 108            }
 109            else if (sfCorrs > maxCorrs)
 110            {
 111                sfCorr[facei] *= maxCorrs/(sfCorrs + VSMALL);
 112            }
 113        }
 114        else if (sfCorrs < 0)
 115        {
 116            if (maxCorrs > 0)
 117            {
 118                sfCorr[facei] = vector::zero;
 119            }
 120            else if (sfCorrs < maxCorrs)
 121            {
 122                sfCorr[facei] *= maxCorrs/(sfCorrs - VSMALL);
 123            }
 124        }
 125    }
 126
 127    return tsfCorr;
 128 }
 129
 130
 131 namespace Foam
 132 {
 133     makelimitedSurfaceInterpolationTypeScheme(linearUpwindV, vector)
 134 }
 135
 136 // ************************************************************************* //