00001 /*---------------------------------------------------------------------------*\ 00002 ========= | 00003 \\ / F ield | OpenFOAM: The Open Source CFD Toolbox 00004 \\ / O peration | 00005 \\ / A nd | Copyright (C) 1991-2010 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 00013 the Free Software Foundation, either version 3 of the License, or 00014 (at your 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, see <http://www.gnu.org/licenses/>. 00023 00024 Class 00025 Foam::compressible::LESModels::Smagorinsky 00026 00027 Description 00028 The choric Smagorinsky Model for compressible flows. 00029 00030 Algebraic eddy viscosity SGS model founded on the assumption that 00031 local equilibrium prevails. 00032 Thus, 00033 @verbatim 00034 00035 B = 2/3*k*I - 2*nuSgs*dev(D) 00036 00037 where 00038 00039 D = symm(grad(U)); 00040 k from rho*D:B + ce*rho*k^3/2/delta = 0 00041 muSgs = ck*rho*sqrt(k)*delta 00042 @endverbatim 00043 00044 SourceFiles 00045 Smagorinsky.C 00046 00047 \*---------------------------------------------------------------------------*/ 00048 00049 #ifndef compressibleSmagorinsky_H 00050 #define compressibleSmagorinsky_H 00051 00052 #include <compressibleLESModels/GenEddyVisc.H> 00053 00054 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * // 00055 00056 namespace Foam 00057 { 00058 namespace compressible 00059 { 00060 namespace LESModels 00061 { 00062 00063 /*---------------------------------------------------------------------------*\ 00064 Class Smagorinsky Declaration 00065 \*---------------------------------------------------------------------------*/ 00066 00067 class Smagorinsky 00068 : 00069 public GenEddyVisc 00070 { 00071 // Private data 00072 00073 dimensionedScalar ck_; 00074 00075 00076 // Private Member Functions 00077 00078 //- Update sub-grid scale fields 00079 void updateSubGridScaleFields(const volTensorField& gradU); 00080 00081 // Disallow default bitwise copy construct and assignment 00082 Smagorinsky(const Smagorinsky&); 00083 Smagorinsky& operator=(const Smagorinsky&); 00084 00085 00086 public: 00087 00088 //- Runtime type information 00089 TypeName("Smagorinsky"); 00090 00091 // Constructors 00092 00093 //- Construct from components 00094 Smagorinsky 00095 ( 00096 const volScalarField& rho, 00097 const volVectorField& U, 00098 const surfaceScalarField& phi, 00099 const basicThermo& thermoPhysicalModel 00100 ); 00101 00102 00103 //- Destructor 00104 virtual ~Smagorinsky() 00105 {} 00106 00107 00108 // Member Functions 00109 00110 //- Correct Eddy-Viscosity and related properties 00111 virtual void correct(const tmp<volTensorField>& gradU); 00112 00113 //- Read LESProperties dictionary 00114 virtual bool read(); 00115 }; 00116 00117 00118 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * // 00119 00120 } // End namespace LESModels 00121 } // End namespace compressible 00122 } // End namespace Foam 00123 00124 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * // 00125 00126 #endif 00127 00128 // ************************ vim: set sw=4 sts=4 et: ************************ //