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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 UOprocess 00027 00028 Description 00029 Random UO process. 00030 00031 SourceFiles 00032 UOprocess.C 00033 00034 \*---------------------------------------------------------------------------*/ 00035 00036 #ifndef UOprocess_H 00037 #define UOprocess_H 00038 00039 #include "complexFields.H" 00040 #include "scalar.H" 00041 #include "Random.H" 00042 00043 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * // 00044 00045 namespace Foam 00046 { 00047 00048 class Kmesh; 00049 class dictionary; 00050 00051 /*---------------------------------------------------------------------------*\ 00052 Class UOprocess Declaration 00053 \*---------------------------------------------------------------------------*/ 00054 00055 class UOprocess 00056 { 00057 // Private data 00058 00059 Random GaussGen; 00060 00061 const Kmesh& Mesh; 00062 const scalar DeltaT, RootDeltaT; 00063 complexVectorField UOfield; 00064 00065 scalar Alpha; 00066 scalar Sigma; 00067 scalar Kupper; 00068 scalar Klower; 00069 scalar Scale; 00070 00071 00072 // Private Member Functions 00073 00074 complexVector WeinerProcess(); 00075 00076 00077 public: 00078 00079 // Constructors 00080 00081 //- Construct from wavenumber mesh and timestep 00082 UOprocess 00083 ( 00084 const Kmesh& kmesh, 00085 const scalar deltaT, 00086 const dictionary& 00087 ); 00088 00089 00090 // Member Functions 00091 00092 const complexVectorField& newField(); 00093 }; 00094 00095 00096 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * // 00097 00098 } // End namespace Foam 00099 00100 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * // 00101 00102 #endif 00103 00104 // ************************************************************************* //