nutkWallFunctionFvPatchScalarField.C

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    Copyright (C) 2019 OpenCFD Ltd.
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#include "nutkWallFunctionFvPatchScalarField.H"
#include "turbulenceModel.H"
#include "fvPatchFieldMapper.H"
#include "volFields.H"
#include "wallFvPatch.H"
#include "addToRunTimeSelectionTable.H"
 
 
// * * * * * * * * * * * * Protected Member Functions  * * * * * * * * * * * //
 
Foam::tmp<Foam::scalarField> Foam::nutkWallFunctionFvPatchScalarField::
calcNut() const
{
    const label patchi = patch().index();
 
    const turbulenceModel& turbModel = db().lookupObject<turbulenceModel>
    (
        IOobject::groupName
        (
            turbulenceModel::propertiesName,
            internalField().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(), Zero));
    scalarField& nutw = tnutw.ref();
 
    forAll(nutw, facei)
    {
        const label celli = patch().faceCells()[facei];
 
        const scalar yPlus = Cmu25*y[facei]*sqrt(k[celli])/nuw[facei];
 
        // Viscous sublayer contribution
        const scalar nutVis = 0.0;
 
        // Inertial sublayer contribution
        const scalar nutLog =
            nuw[facei]*(yPlus*kappa_/log(max(E_*yPlus, 1 + 1e-4)) - 1.0);
 
        nutw[facei] = blend(nutVis, nutLog, yPlus);
    }
 
    return tnutw;
}
 
 
// * * * * * * * * * * * * * * * * Constructors  * * * * * * * * * * * * * * //
 
Foam::nutkWallFunctionFvPatchScalarField::nutkWallFunctionFvPatchScalarField
(
    const fvPatch& p,
    const DimensionedField<scalar, volMesh>& iF
)
:
    nutWallFunctionFvPatchScalarField(p, iF)
{}
 
 
Foam::nutkWallFunctionFvPatchScalarField::nutkWallFunctionFvPatchScalarField
(
    const nutkWallFunctionFvPatchScalarField& ptf,
    const fvPatch& p,
    const DimensionedField<scalar, volMesh>& iF,
    const fvPatchFieldMapper& mapper
)
:
    nutWallFunctionFvPatchScalarField(ptf, p, iF, mapper)
{}
 
 
Foam::nutkWallFunctionFvPatchScalarField::nutkWallFunctionFvPatchScalarField
(
    const fvPatch& p,
    const DimensionedField<scalar, volMesh>& iF,
    const dictionary& dict
)
:
    nutWallFunctionFvPatchScalarField(p, iF, dict)
{}
 
 
Foam::nutkWallFunctionFvPatchScalarField::nutkWallFunctionFvPatchScalarField
(
    const nutkWallFunctionFvPatchScalarField& wfpsf
)
:
    nutWallFunctionFvPatchScalarField(wfpsf)
{}
 
 
Foam::nutkWallFunctionFvPatchScalarField::nutkWallFunctionFvPatchScalarField
(
    const nutkWallFunctionFvPatchScalarField& wfpsf,
    const DimensionedField<scalar, volMesh>& iF
)
:
    nutWallFunctionFvPatchScalarField(wfpsf, iF)
{}
 
 
// * * * * * * * * * * * * * * * Member Functions  * * * * * * * * * * * * * //
 
Foam::tmp<Foam::scalarField> Foam::nutkWallFunctionFvPatchScalarField::
yPlus() const
{
    const label patchi = patch().index();
 
    const turbulenceModel& turbModel = db().lookupObject<turbulenceModel>
    (
        IOobject::groupName
        (
            turbulenceModel::propertiesName,
            internalField().group()
        )
    );
 
    const scalarField& y = turbModel.y()[patchi];
 
    const tmp<volScalarField> tk = turbModel.k();
    const volScalarField& k = tk();
    tmp<scalarField> kwc = k.boundaryField()[patchi].patchInternalField();
    tmp<scalarField> nuw = turbModel.nu(patchi);
 
    return pow025(Cmu_)*y*sqrt(kwc)/nuw;
}
 
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
namespace Foam
{
    makePatchTypeField
    (
        fvPatchScalarField,
        nutkWallFunctionFvPatchScalarField
    );
}
 
 
// ************************************************************************* //