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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 Global 00026 setInitialDeltaT 00027 00028 Description 00029 Set the initial timestep corresponding to the timestep adjustment 00030 algorithm in setDeltaT 00031 00032 \*---------------------------------------------------------------------------*/ 00033 00034 if (adjustTimeStep) 00035 { 00036 # include "CourantNo.H" 00037 00038 if (CoNum > SMALL) 00039 { 00040 runTime.setDeltaT 00041 ( 00042 min 00043 ( 00044 maxCo*runTime.deltaT().value()/CoNum, 00045 maxDeltaT 00046 ) 00047 ); 00048 } 00049 } 00050 00051 // ************************************************************************* //