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00001 /*---------------------------------------------------------------------------*\ 00002 ========= | 00003 \\ / F ield | OpenFOAM: The Open Source CFD Toolbox 00004 \\ / O peration | 00005 \\ / A nd | Copyright (C) 1991-2005 OpenCFD Ltd. 00006 \\/ M anipulation | 00007 ------------------------------------------------------------------------------- 00008 License 00009 This file is part of OpenFOAM. 00010 00011 OpenFOAM is free software; you can redistribute it and/or modify it 00012 under the terms of the GNU General Public License as published by the 00013 Free Software Foundation; either version 2 of the License, or (at your 00014 option) any later version. 00015 00016 OpenFOAM is distributed in the hope that it will be useful, but WITHOUT 00017 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 00018 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 00019 for more details. 00020 00021 You should have received a copy of the GNU General Public License 00022 along with OpenFOAM; if not, write to the Free Software Foundation, 00023 Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA 00024 00025 Class 00026 Smagorinsky 00027 00028 Description 00029 <pre> 00030 The choric Smagorinsky Model 00031 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 00032 Algebraic eddy viscosity SGS model founded on the assumption that 00033 local equilibrium prevails, hence 00034 00035 B = 2/3*k*I - 2*nuSgs*dev(D) 00036 00037 where 00038 00039 D = symm(grad(U)); 00040 k = (2*ck/ce)*delta^2*grad(U):dev(D) 00041 muSgs = rho*ck*sqrt(k)*delta 00042 muEff = muSgs + mu 00043 </pre> 00044 00045 SourceFiles 00046 Smagorinsky.C 00047 00048 \*---------------------------------------------------------------------------*/ 00049 00050 #ifndef compressibleSmagorinsky_H 00051 #define compressibleSmagorinsky_H 00052 00053 #include "GenEddyVisc.H" 00054 00055 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * // 00056 00057 namespace Foam 00058 { 00059 namespace compressible 00060 { 00061 namespace LESmodels 00062 { 00063 00064 /*---------------------------------------------------------------------------*\ 00065 Class Smagorinsky Declaration 00066 \*---------------------------------------------------------------------------*/ 00067 00068 class Smagorinsky 00069 : 00070 public GenEddyVisc 00071 { 00072 // Private data 00073 00074 dimensionedScalar ck_; 00075 00076 00077 // Private Member Functions 00078 00079 // Disallow default bitwise copy construct and assignment 00080 Smagorinsky(const Smagorinsky&); 00081 Smagorinsky& operator=(const Smagorinsky&); 00082 00083 00084 public: 00085 00086 //- Runtime type information 00087 TypeName("Smagorinsky"); 00088 00089 // Constructors 00090 00091 //- Construct from components 00092 Smagorinsky 00093 ( 00094 const volScalarField& rho, 00095 const volVectorField& U, 00096 const surfaceScalarField& phi, 00097 const basicThermo& thermoPhysicalModel 00098 ); 00099 00100 00101 // Destructor 00102 00103 ~Smagorinsky() 00104 {} 00105 00106 00107 // Member Functions 00108 00109 //- Correct Eddy-Viscosity and related properties 00110 void correct(const tmp<volTensorField>& gradU); 00111 00112 //- Read turbulenceProperties dictionary 00113 bool read(); 00114 }; 00115 00116 00117 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * // 00118 00119 } // End namespace LESmodels 00120 } // End namespace compressible 00121 } // End namespace Foam 00122 00123 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * // 00124 00125 #endif 00126 00127 // ************************************************************************* //