nutkAtmRoughWallFunctionFvPatchScalarField.C

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/*---------------------------------------------------------------------------*\
  =========                 |
  \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
   \\    /   O peration     |
    \\  /    A nd           | Copyright (C) 2011-2015 OpenFOAM Foundation
     \\/     M anipulation  |
-------------------------------------------------------------------------------
License
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    for more details.
 
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#include "nutkAtmRoughWallFunctionFvPatchScalarField.H"
#include "turbulenceModel.H"
#include "fvPatchFieldMapper.H"
#include "volFields.H"
#include "addToRunTimeSelectionTable.H"
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
namespace Foam
{
 
// * * * * * * * * * * * * Protected Member Functions  * * * * * * * * * * * //
 
tmp<scalarField> nutkAtmRoughWallFunctionFvPatchScalarField::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(*this));
    scalarField& nutw = tnutw();
 
    forAll(nutw, faceI)
    {
        label faceCellI = patch().faceCells()[faceI];
 
        scalar uStar = Cmu25*sqrt(k[faceCellI]);
        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
)
:
    nutkWallFunctionFvPatchScalarField(p, iF),
    z0_(p.size(), 0.0)
{}
 
 
nutkAtmRoughWallFunctionFvPatchScalarField::
nutkAtmRoughWallFunctionFvPatchScalarField
(
    const nutkAtmRoughWallFunctionFvPatchScalarField& ptf,
    const fvPatch& p,
    const DimensionedField<scalar, volMesh>& iF,
    const fvPatchFieldMapper& mapper
)
:
    nutkWallFunctionFvPatchScalarField(ptf, p, iF, mapper),
    z0_(ptf.z0_, mapper)
{}
 
 
nutkAtmRoughWallFunctionFvPatchScalarField::
nutkAtmRoughWallFunctionFvPatchScalarField
(
    const fvPatch& p,
    const DimensionedField<scalar, volMesh>& iF,
    const dictionary& dict
)
:
    nutkWallFunctionFvPatchScalarField(p, iF, dict),
    z0_("z0", dict, p.size())
{}
 
 
nutkAtmRoughWallFunctionFvPatchScalarField::
nutkAtmRoughWallFunctionFvPatchScalarField
(
    const nutkAtmRoughWallFunctionFvPatchScalarField& rwfpsf
)
:
    nutkWallFunctionFvPatchScalarField(rwfpsf),
    z0_(rwfpsf.z0_)
{}
 
 
nutkAtmRoughWallFunctionFvPatchScalarField::
nutkAtmRoughWallFunctionFvPatchScalarField
(
    const nutkAtmRoughWallFunctionFvPatchScalarField& rwfpsf,
    const DimensionedField<scalar, volMesh>& iF
)
:
    nutkWallFunctionFvPatchScalarField(rwfpsf, iF),
    z0_(rwfpsf.z0_)
{}
 
 
// * * * * * * * * * * * * * * * Member Functions  * * * * * * * * * * * * * //
 
void nutkAtmRoughWallFunctionFvPatchScalarField::autoMap
(
    const fvPatchFieldMapper& m
)
{
    nutkWallFunctionFvPatchScalarField::autoMap(m);
    z0_.autoMap(m);
}
 
 
void nutkAtmRoughWallFunctionFvPatchScalarField::rmap
(
    const fvPatchScalarField& ptf,
    const labelList& addr
)
{
    nutkWallFunctionFvPatchScalarField::rmap(ptf, addr);
 
    const nutkAtmRoughWallFunctionFvPatchScalarField& nrwfpsf =
        refCast<const nutkAtmRoughWallFunctionFvPatchScalarField>(ptf);
 
    z0_.rmap(nrwfpsf.z0_, addr);
}
 
 
void nutkAtmRoughWallFunctionFvPatchScalarField::write(Ostream& os) const
{
    fvPatchField<scalar>::write(os);
    writeLocalEntries(os);
    z0_.writeEntry("z0", os);
    writeEntry("value", os);
}
 
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
makePatchTypeField
(
    fvPatchScalarField,
    nutkAtmRoughWallFunctionFvPatchScalarField
);
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
} // End namespace Foam
 
// ************************************************************************* //