epsilonLowReWallFunctionFvPatchScalarField.C

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/*---------------------------------------------------------------------------*\
  =========                 |
  \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
   \\    /   O peration     |
    \\  /    A nd           | Copyright (C) 2012-2015 OpenFOAM Foundation
     \\/     M anipulation  |
-------------------------------------------------------------------------------
License
    This file is part of OpenFOAM.
 
    OpenFOAM is free software: you can redistribute it and/or modify it
    under the terms of the GNU General Public License as published by
    the Free Software Foundation, either version 3 of the License, or
    (at your option) any later version.
 
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    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
    FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
    for more details.
 
    You should have received a copy of the GNU General Public License
    along with OpenFOAM.  If not, see <http://www.gnu.org/licenses/>.
 
\*---------------------------------------------------------------------------*/
 
#include "epsilonLowReWallFunctionFvPatchScalarField.H"
#include "turbulenceModel.H"
#include "fvPatchFieldMapper.H"
#include "volFields.H"
#include "addToRunTimeSelectionTable.H"
 
// * * * * * * * * * * * * Protected Member Functions  * * * * * * * * * * * //
 
Foam::scalar Foam::epsilonLowReWallFunctionFvPatchScalarField::yPlusLam
(
    const scalar kappa,
    const scalar E
)
{
    scalar ypl = 11.0;
 
    for (int i=0; i<10; i++)
    {
        ypl = log(max(E*ypl, 1))/kappa;
    }
 
    return ypl;
}
 
 
void Foam::epsilonLowReWallFunctionFvPatchScalarField::calculate
(
    const turbulenceModel& turbModel,
    const List<scalar>& cornerWeights,
    const fvPatch& patch,
    scalarField& G0,
    scalarField& epsilon0
)
{
    const label patchi = patch.index();
 
    const scalarField& y = turbModel.y()[patchi];
 
    const scalar Cmu25 = pow025(Cmu_);
    const scalar Cmu75 = pow(Cmu_, 0.75);
 
    const tmp<volScalarField> tk = turbModel.k();
    const volScalarField& k = tk();
 
    const tmp<scalarField> tnuw = turbModel.nu(patchi);
    const scalarField& nuw = tnuw();
 
    const tmp<scalarField> tnutw = turbModel.nut(patchi);
    const scalarField& nutw = tnutw();
 
    const fvPatchVectorField& Uw = turbModel.U().boundaryField()[patchi];
 
    const scalarField magGradUw(mag(Uw.snGrad()));
 
    const DimensionedField<scalar, volMesh>& G =
        db().lookupObject<DimensionedField<scalar, volMesh> >
        (
            turbModel.GName()
        );
 
    // Set epsilon and G
    forAll(nutw, facei)
    {
        label celli = patch.faceCells()[facei];
 
        scalar yPlus = Cmu25*sqrt(k[celli])*y[facei]/nuw[facei];
 
        scalar w = cornerWeights[facei];
 
        if (yPlus > yPlusLam_)
        {
            epsilon0[celli] += w*Cmu75*pow(k[celli], 1.5)/(kappa_*y[facei]);
 
            G0[celli] +=
                w
               *(nutw[facei] + nuw[facei])
               *magGradUw[facei]
               *Cmu25*sqrt(k[celli])
               /(kappa_*y[facei]);
        }
        else
        {
            epsilon0[celli] += w*2.0*k[celli]*nuw[facei]/sqr(y[facei]);
            G0[celli] += G[celli];
        }
    }
}
 
 
// * * * * * * * * * * * * * * * * Constructors  * * * * * * * * * * * * * * //
 
Foam::epsilonLowReWallFunctionFvPatchScalarField::
epsilonLowReWallFunctionFvPatchScalarField
(
    const fvPatch& p,
    const DimensionedField<scalar, volMesh>& iF
)
:
    epsilonWallFunctionFvPatchScalarField(p, iF),
    yPlusLam_(yPlusLam(kappa_, E_))
{}
 
 
Foam::epsilonLowReWallFunctionFvPatchScalarField::
epsilonLowReWallFunctionFvPatchScalarField
(
    const epsilonLowReWallFunctionFvPatchScalarField& ptf,
    const fvPatch& p,
    const DimensionedField<scalar, volMesh>& iF,
    const fvPatchFieldMapper& mapper
)
:
    epsilonWallFunctionFvPatchScalarField(ptf, p, iF, mapper),
    yPlusLam_(ptf.yPlusLam_)
{}
 
 
Foam::epsilonLowReWallFunctionFvPatchScalarField::
epsilonLowReWallFunctionFvPatchScalarField
(
    const fvPatch& p,
    const DimensionedField<scalar, volMesh>& iF,
    const dictionary& dict
)
:
    epsilonWallFunctionFvPatchScalarField(p, iF, dict),
    yPlusLam_(yPlusLam(kappa_, E_))
{}
 
 
Foam::epsilonLowReWallFunctionFvPatchScalarField::
epsilonLowReWallFunctionFvPatchScalarField
(
    const epsilonLowReWallFunctionFvPatchScalarField& ewfpsf
)
:
    epsilonWallFunctionFvPatchScalarField(ewfpsf),
    yPlusLam_(ewfpsf.yPlusLam_)
{}
 
 
Foam::epsilonLowReWallFunctionFvPatchScalarField::
epsilonLowReWallFunctionFvPatchScalarField
(
    const epsilonLowReWallFunctionFvPatchScalarField& ewfpsf,
    const DimensionedField<scalar, volMesh>& iF
)
:
    epsilonWallFunctionFvPatchScalarField(ewfpsf, iF),
    yPlusLam_(ewfpsf.yPlusLam_)
{}
 
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
namespace Foam
{
    makePatchTypeField
    (
        fvPatchScalarField,
        epsilonLowReWallFunctionFvPatchScalarField
    );
}
 
 
// ************************************************************************* //