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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 ODE 00027 00028 Description 00029 Abstract base class for the ODE solvers. 00030 00031 \*---------------------------------------------------------------------------*/ 00032 00033 #ifndef ODE_H 00034 #define ODE_H 00035 00036 #include "scalarField.H" 00037 #include "Matrix.H" 00038 00039 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * // 00040 00041 namespace Foam 00042 { 00043 00044 /*---------------------------------------------------------------------------*\ 00045 Class ODE Declaration 00046 \*---------------------------------------------------------------------------*/ 00047 00048 class ODE 00049 { 00050 00051 public: 00052 00053 // Constructors 00054 00055 //- Construct null 00056 ODE() 00057 {} 00058 00059 00060 // Destructor 00061 00062 virtual ~ODE() 00063 {} 00064 00065 00066 // Member Functions 00067 00068 virtual label nEqns() const = 0; 00069 00070 virtual void derivatives 00071 ( 00072 const scalar x, 00073 const scalarField& y, 00074 scalarField& dydx 00075 ) const = 0; 00076 00077 00078 virtual void jacobian 00079 ( 00080 const scalar x, 00081 const scalarField& y, 00082 scalarField& dfdx, 00083 Matrix<scalar>& dfdy 00084 ) const = 0; 00085 }; 00086 00087 00088 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * // 00089 00090 } // End namespace Foam 00091 00092 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * // 00093 00094 #endif 00095 00096 // ************************************************************************* //