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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 standardDragModel 00027 00028 Description 00029 standard drag law model with a lower limit on the Cd-value 00030 00031 \*---------------------------------------------------------------------------*/ 00032 00033 #ifndef standardDragModel_H 00034 #define standardDragModel_H 00035 00036 #include "dragModel.H" 00037 00038 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * // 00039 00040 namespace Foam 00041 { 00042 00043 /*---------------------------------------------------------------------------*\ 00044 Class standardDragModel Declaration 00045 \*---------------------------------------------------------------------------*/ 00046 00047 class standardDragModel 00048 : 00049 public dragModel 00050 { 00051 00052 private: 00053 00054 // Private data 00055 00056 dictionary dragDict_; 00057 scalar preReFactor_; 00058 scalar ReExponent_; 00059 scalar ReLimiter_; 00060 scalar CdLimiter_; 00061 scalar Cdistort_; 00062 00063 public: 00064 00065 //- Runtime type information 00066 TypeName("standardDragModel"); 00067 00068 00069 // Constructors 00070 00071 //- Construct from components 00072 standardDragModel 00073 ( 00074 const dictionary& dict 00075 ); 00076 00077 00078 // Destructor 00079 00080 ~standardDragModel(); 00081 00082 00083 // Member Functions 00084 00085 scalar Cd 00086 ( 00087 const scalar ReynoldsNumber, 00088 const scalar deviation 00089 ) const; 00090 00091 scalar relaxationTime 00092 ( 00093 const vector& URel, 00094 const scalar diameter, 00095 const scalar rho, 00096 const scalar liquidDensity, 00097 const scalar nu, 00098 const scalar deviation 00099 ) const; 00100 00101 }; 00102 00103 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * // 00104 00105 } // End namespace Foam 00106 00107 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * // 00108 00109 #endif 00110 00111 // ************************************************************************* //