nutkWallFunctionFvPatchScalarField.C

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/*---------------------------------------------------------------------------* \
  =========                 |
  \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
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    \\  /    A nd           | Copyright (C) 2011-2015 OpenFOAM Foundation
     \\/     M anipulation  |
-------------------------------------------------------------------------------
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#include "nutkWallFunctionFvPatchScalarField.H"
#include "turbulenceModel.H"
#include "fvPatchFieldMapper.H"
#include "volFields.H"
#include "wallFvPatch.H"
#include "addToRunTimeSelectionTable.H"
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
namespace Foam
{
 
// * * * * * * * * * * * * Protected Member Functions  * * * * * * * * * * * //
 
tmp<scalarField> nutkWallFunctionFvPatchScalarField::calcNut() const
{
    const label patchi = patch().index();
 
    const turbulenceModel& turbModel = db().lookupObject<turbulenceModel>
    (
        IOobject::groupName
        (
            turbulenceModel::propertiesName,
            dimensionedInternalField().group()
        )
    );
 
    const scalarField& y = turbModel.y()[patchi];
    const tmp<volScalarField> tk = turbModel.k();
    const volScalarField& k = tk();
    const tmp<scalarField> tnuw = turbModel.nu(patchi);
    const scalarField& nuw = tnuw();
 
    const scalar Cmu25 = pow025(Cmu_);
 
    tmp<scalarField> tnutw(new scalarField(patch().size(), 0.0));
    scalarField& nutw = tnutw();
 
    forAll(nutw, faceI)
    {
        label faceCellI = patch().faceCells()[faceI];
 
        scalar yPlus = Cmu25*y[faceI]*sqrt(k[faceCellI])/nuw[faceI];
 
        if (yPlus > yPlusLam_)
        {
            nutw[faceI] = nuw[faceI]*(yPlus*kappa_/log(E_*yPlus) - 1.0);
        }
    }
 
    return tnutw;
}
 
 
// * * * * * * * * * * * * * * * * Constructors  * * * * * * * * * * * * * * //
 
nutkWallFunctionFvPatchScalarField::nutkWallFunctionFvPatchScalarField
(
    const fvPatch& p,
    const DimensionedField<scalar, volMesh>& iF
)
:
    nutWallFunctionFvPatchScalarField(p, iF)
{}
 
 
nutkWallFunctionFvPatchScalarField::nutkWallFunctionFvPatchScalarField
(
    const nutkWallFunctionFvPatchScalarField& ptf,
    const fvPatch& p,
    const DimensionedField<scalar, volMesh>& iF,
    const fvPatchFieldMapper& mapper
)
:
    nutWallFunctionFvPatchScalarField(ptf, p, iF, mapper)
{}
 
 
nutkWallFunctionFvPatchScalarField::nutkWallFunctionFvPatchScalarField
(
    const fvPatch& p,
    const DimensionedField<scalar, volMesh>& iF,
    const dictionary& dict
)
:
    nutWallFunctionFvPatchScalarField(p, iF, dict)
{}
 
 
nutkWallFunctionFvPatchScalarField::nutkWallFunctionFvPatchScalarField
(
    const nutkWallFunctionFvPatchScalarField& wfpsf
)
:
    nutWallFunctionFvPatchScalarField(wfpsf)
{}
 
 
nutkWallFunctionFvPatchScalarField::nutkWallFunctionFvPatchScalarField
(
    const nutkWallFunctionFvPatchScalarField& wfpsf,
    const DimensionedField<scalar, volMesh>& iF
)
:
    nutWallFunctionFvPatchScalarField(wfpsf, iF)
{}
 
 
// * * * * * * * * * * * * * * * Member Functions  * * * * * * * * * * * * * //
 
tmp<scalarField> nutkWallFunctionFvPatchScalarField::yPlus() const
{
    const label patchi = patch().index();
 
    const turbulenceModel& turbModel = db().lookupObject<turbulenceModel>
    (
        IOobject::groupName
        (
            turbulenceModel::propertiesName,
            dimensionedInternalField().group()
        )
    );
 
    const scalarField& y = turbModel.y()[patchi];
 
    const tmp<volScalarField> tk = turbModel.k();
    const volScalarField& k = tk();
    tmp<scalarField> kwc = k.boundaryField()[patchi].patchInternalField();
    const tmp<scalarField> tnuw = turbModel.nu(patchi);
    const scalarField& nuw = tnuw();
 
    return pow025(Cmu_)*y*sqrt(kwc)/nuw;
}
 
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
makePatchTypeField
(
    fvPatchScalarField,
    nutkWallFunctionFvPatchScalarField
);
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
} // End namespace Foam
 
// ************************************************************************* //