/usr/include/freefoam/compressibleLESModels/GenSGSStress.H is in libfreefoam-dev 0.1.0+dfsg-1build1.
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========= |
\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
\\ / O peration |
\\ / A nd | Copyright (C) 1991-2010 OpenCFD Ltd.
\\/ 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.
OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
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/>.
Class
Foam::compressible::LESModels::GenSGSStress
Description
General base class for all compressible models that directly
solve for the SGS stress tensor B.
Contains tensor fields B (the SGS stress tensor) as well as scalar
fields for k (SGS turbulent energy) gamma (SGS viscosity) and epsilon
(SGS dissipation).
SourceFiles
GenSGSStress.C
\*---------------------------------------------------------------------------*/
#ifndef compressibleGenSGSStress_H
#define compressibleGenSGSStress_H
#include <compressibleLESModels/LESModel.H>
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
namespace Foam
{
namespace compressible
{
namespace LESModels
{
/*---------------------------------------------------------------------------*\
Class GenSGSStress Declaration
\*---------------------------------------------------------------------------*/
class GenSGSStress
:
virtual public LESModel
{
// Private Member Functions
// Disallow default bitwise copy construct and assignment
GenSGSStress(const GenSGSStress&);
GenSGSStress& operator=(const GenSGSStress&);
protected:
// Model coefficients
dimensionedScalar ce_;
dimensionedScalar Prt_;
// Fields
volSymmTensorField B_;
volScalarField muSgs_;
volScalarField alphaSgs_;
public:
// Constructors
//- Constructor from components
GenSGSStress
(
const volScalarField& rho,
const volVectorField& U,
const surfaceScalarField& phi,
const basicThermo& thermoPhysicalModel
);
//- Destructor
virtual ~GenSGSStress()
{}
// Member Functions
//- Return the SGS turbulent kinetic energy
virtual tmp<volScalarField> k() const
{
return 0.5*tr(B_);
}
//- Return the SGS turbulent dissipation
virtual tmp<volScalarField> epsilon() const
{
volScalarField K = k();
return ce_*K*sqrt(K)/delta();
}
//- Return the SGS viscosity
virtual tmp<volScalarField> muSgs() const
{
return muSgs_;
}
//- Return the SGS thermal diffusivity
virtual tmp<volScalarField> alphaSgs() const
{
return alphaSgs_;
}
//- Return thermal conductivity
virtual tmp<volScalarField> alphaEff() const
{
return tmp<volScalarField>
(
new volScalarField("alphaEff", alphaSgs_ + alpha())
);
}
//- Return the sub-grid stress tensor
virtual tmp<volSymmTensorField> B() const
{
return B_;
}
//- Return the deviatoric part of the effective sub-grid
// turbulence stress tensor including the laminar stress
virtual tmp<volSymmTensorField> devRhoBeff() const;
//- Returns divergence of B : i.e. the additional term in the
// filtered NSE
virtual tmp<fvVectorMatrix> divDevRhoBeff(volVectorField& U) const;
//- Correct Eddy-Viscosity and related properties
virtual void correct(const tmp<volTensorField>& gradU);
//- Read LESProperties dictionary
virtual bool read();
};
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
} // End namespace LESModels
} // End namespace compressible
} // End namespace Foam
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
#endif
// ************************ vim: set sw=4 sts=4 et: ************************ //
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