1 /*---------------------------------------------------------------------------*\
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25 Foam::incompressible::LESModels::Smagorinsky2
28 The Isochoric Smagorinsky Model for incompressible flows
30 Algebraic eddy viscosity SGS model founded on the assumption that
31 local equilibrium prevails, hence
33 B = 2/3*k*I - 2*nuSgs*dev(D) - 2*cD2*delta*(D.dev(D));
34 Beff = 2/3*k*I - 2*nuEff*dev(D) - 2*cD2*delta*(D.dev(D));
39 k = cI*delta^2*||D||^2
40 nuSgs = ck*sqrt(k)*delta
47 \*---------------------------------------------------------------------------*/
49 #ifndef Smagorinsky2_H
50 #define Smagorinsky2_H
52 #include "Smagorinsky.H"
54 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
58 namespace incompressible
63 /*---------------------------------------------------------------------------*\
64 Class Smagorinsky2 Declaration
65 \*---------------------------------------------------------------------------*/
73 dimensionedScalar cD2_;
76 // Private Member Functions
78 // Disallow default bitwise copy construct and assignment
79 Smagorinsky2(const Smagorinsky2&);
80 Smagorinsky2& operator=(const Smagorinsky2&);
85 //- Runtime type information
86 TypeName("Smagorinsky2");
91 //- Construct from components
94 const volVectorField& U,
95 const surfaceScalarField& phi,
96 transportModel& transport
101 virtual ~Smagorinsky2()
108 virtual tmp<volSymmTensorField> B() const;
111 // This is the additional term due to the filtering of the NSE.
112 virtual tmp<fvVectorMatrix> divDevBeff(volVectorField& U) const;
114 //- Read LESProperties dictionary
119 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
121 } // End namespace LESModels
122 } // End namespace incompressible
123 } // End namespace Foam
125 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
129 // ************************************************************************* //