/usr/include/freefoam/compressibleLESModels/dynOneEqEddy.H is in libfreefoam-dev 0.1.0+dfsg-1build1.
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License
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Class
Foam::compressible::LESModels::dynOneEqEddy
Description
One Equation Eddy Viscosity Model for compressible flows.
Eddy viscosity SGS model using a modeled balance equation to simulate
the behaviour of k.
Thus
@verbatim
d/dt(k) + div(U*k) - div(nuSgs*grad(k))
=
-rho*B*L - ce*rho*k^3/2/delta
and
B = 2/3*k*I - 2*nuSgs*dev(D)
where
D = symm(grad(U));
nuSgs = ck*sqrt(k)*delta
@endverbatim
SourceFiles
dynOneEqEddy.C
\*---------------------------------------------------------------------------*/
#ifndef compressibleDynOneEqEddy_H
#define compressibleDynOneEqEddy_H
#include <compressibleLESModels/GenEddyVisc.H>
#include <LESfilters/LESfilter.H>
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
namespace Foam
{
namespace compressible
{
namespace LESModels
{
/*---------------------------------------------------------------------------*\
Class dynOneEqEddy Declaration
\*---------------------------------------------------------------------------*/
class dynOneEqEddy
:
public GenEddyVisc
{
// Private data
autoPtr<LESfilter> filterPtr_;
LESfilter& filter_;
// Private Member Functions
//- Update sub-grid scale fields
void updateSubGridScaleFields(const volSymmTensorField& D);
//- Calculate ck, ce by filtering the velocity field U.
dimensionedScalar ck_(const volSymmTensorField& D) const;
dimensionedScalar ce_(const volSymmTensorField& D) const;
// Disallow default bitwise copy construct and assignment
dynOneEqEddy(const dynOneEqEddy&);
dynOneEqEddy& operator=(const dynOneEqEddy&);
public:
//- Runtime type information
TypeName("dynOneEqEddy");
// Constructors
//- Constructor from components
dynOneEqEddy
(
const volScalarField& rho,
const volVectorField& U,
const surfaceScalarField& phi,
const basicThermo& thermoPhysicalModel
);
// Destructor
virtual ~dynOneEqEddy()
{}
// Member Functions
//- Return the effective diffusivity for k
tmp<volScalarField> DkEff() const
{
return tmp<volScalarField>
(
new volScalarField("DkEff", muSgs_ + mu())
);
}
//- 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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