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::GradientDispersionRAS 00026 00027 Description 00028 The velocity is perturbed in the direction of -grad(k), with a 00029 Gaussian random number distribution with variance sigma. 00030 where sigma is defined below 00031 00032 \*---------------------------------------------------------------------------*/ 00033 00034 #ifndef GradientDispersionRAS_H 00035 #define GradientDispersionRAS_H 00036 00037 #include <lagrangianIntermediate/DispersionRASModel.H> 00038 00039 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * // 00040 00041 namespace Foam 00042 { 00043 00044 /*---------------------------------------------------------------------------*\ 00045 Class GradientDispersionRAS Declaration 00046 \*---------------------------------------------------------------------------*/ 00047 00048 template<class CloudType> 00049 class GradientDispersionRAS 00050 : 00051 public DispersionRASModel<CloudType> 00052 { 00053 protected: 00054 00055 // Locally cached turbulence fields 00056 00057 //- Gradient of k 00058 const volVectorField* gradkPtr_; 00059 00060 00061 public: 00062 00063 //- Runtime type information 00064 TypeName("GradientDispersionRAS"); 00065 00066 00067 // Constructors 00068 00069 //- Construct from components 00070 GradientDispersionRAS 00071 ( 00072 const dictionary& dict, 00073 CloudType& owner 00074 ); 00075 00076 00077 //- Destructor 00078 virtual ~GradientDispersionRAS(); 00079 00080 00081 // Member Functions 00082 00083 //- Flag to indicate whether model activates injection model 00084 bool active() const; 00085 00086 //- Cache carrier fields 00087 virtual void cacheFields(const bool store); 00088 00089 //- Update (disperse particles) 00090 virtual vector update 00091 ( 00092 const scalar dt, 00093 const label celli, 00094 const vector& U, 00095 const vector& Uc, 00096 vector& UTurb, 00097 scalar& tTurb 00098 ); 00099 }; 00100 00101 00102 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * // 00103 00104 } // End namespace Foam 00105 00106 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * // 00107 00108 #ifdef NoRepository 00109 # include <lagrangianIntermediate/GradientDispersionRAS.C> 00110 #endif 00111 00112 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * // 00113 00114 #endif 00115 00116 // ************************ vim: set sw=4 sts=4 et: ************************ //
