nutkAtmRoughWallFunctionFvPatchScalarField.C

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#include "nutkAtmRoughWallFunctionFvPatchScalarField.H"
#include "momentumTransportModel.H"
#include "fieldMapper.H"
#include "volFields.H"
#include "addToRunTimeSelectionTable.H"
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
namespace Foam
{
 
// * * * * * * * * * * * * Protected Member Functions  * * * * * * * * * * * //
 
tmp<scalarField> nutkAtmRoughWallFunctionFvPatchScalarField::nut() const
{
    const label patchi = patch().index();
 
    const momentumTransportModel& turbModel =
        db().lookupType<momentumTransportModel>(internalField().group());
 
    const scalarField& y = turbModel.yb()[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(*this));
    scalarField& nutw = tnutw.ref();
 
    forAll(nutw, facei)
    {
        label celli = patch().faceCells()[facei];
 
        scalar uStar = Cmu25*sqrt(k[celli]);
        scalar yPlus = uStar*y[facei]/nuw[facei];
 
        scalar Edash = (y[facei] + z0_[facei])/z0_[facei];
 
        nutw[facei] =
            nuw[facei]*(yPlus*kappa_/log(max(Edash, 1+1e-4)) - 1);
 
        if (debug)
        {
            Info<< "yPlus = " << yPlus
                << ", Edash = " << Edash
                << ", nutw = " << nutw[facei]
                << endl;
        }
    }
 
    return tnutw;
}
 
 
// * * * * * * * * * * * * * * * * Constructors  * * * * * * * * * * * * * * //
 
nutkAtmRoughWallFunctionFvPatchScalarField::
nutkAtmRoughWallFunctionFvPatchScalarField
(
    const fvPatch& p,
    const DimensionedField<scalar, volMesh>& iF,
    const dictionary& dict
)
:
    nutkWallFunctionFvPatchScalarField(p, iF, dict),
    z0_("z0", dimLength, dict, p.size())
{}
 
 
nutkAtmRoughWallFunctionFvPatchScalarField::
nutkAtmRoughWallFunctionFvPatchScalarField
(
    const nutkAtmRoughWallFunctionFvPatchScalarField& ptf,
    const fvPatch& p,
    const DimensionedField<scalar, volMesh>& iF,
    const fieldMapper& mapper
)
:
    nutkWallFunctionFvPatchScalarField(ptf, p, iF, mapper),
    z0_(mapper(ptf.z0_))
{}
 
 
nutkAtmRoughWallFunctionFvPatchScalarField::
nutkAtmRoughWallFunctionFvPatchScalarField
(
    const nutkAtmRoughWallFunctionFvPatchScalarField& rwfpsf,
    const DimensionedField<scalar, volMesh>& iF
)
:
    nutkWallFunctionFvPatchScalarField(rwfpsf, iF),
    z0_(rwfpsf.z0_)
{}
 
 
// * * * * * * * * * * * * * * * Member Functions  * * * * * * * * * * * * * //
 
void nutkAtmRoughWallFunctionFvPatchScalarField::map
(
    const fvPatchScalarField& ptf,
    const fieldMapper& mapper
)
{
    nutkWallFunctionFvPatchScalarField::map(ptf, mapper);
 
    const nutkAtmRoughWallFunctionFvPatchScalarField& nrwfpsf =
        refCast<const nutkAtmRoughWallFunctionFvPatchScalarField>(ptf);
 
    mapper(z0_, nrwfpsf.z0_);
}
 
 
void nutkAtmRoughWallFunctionFvPatchScalarField::reset
(
    const fvPatchScalarField& ptf
)
{
    nutkWallFunctionFvPatchScalarField::reset(ptf);
 
    const nutkAtmRoughWallFunctionFvPatchScalarField& nrwfpsf =
        refCast<const nutkAtmRoughWallFunctionFvPatchScalarField>(ptf);
 
    z0_.reset(nrwfpsf.z0_);
}
 
 
void nutkAtmRoughWallFunctionFvPatchScalarField::write(Ostream& os) const
{
    fvPatchField<scalar>::write(os);
    writeLocalEntries(os);
    writeEntry(os, "z0", z0_);
    writeEntry(os, "value", *this);
}
 
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
makePatchTypeField
(
    fvPatchScalarField,
    nutkAtmRoughWallFunctionFvPatchScalarField
);
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
} // End namespace Foam
 
// ************************************************************************* //