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 Application 00025 engineCompRatio 00026 00027 Description 00028 Calculate the geometric compression ratio. 00029 Note that if you have valves and/or extra volumes it will not work, 00030 since it calculates the volume at BDC and TCD. 00031 00032 Usage 00033 00034 - engineCompRatio [OPTIONS] 00035 00036 @param -case <dir>\n 00037 Case directory. 00038 00039 @param -parallel \n 00040 Run in parallel. 00041 00042 @param -help \n 00043 Display help message. 00044 00045 @param -doc \n 00046 Display Doxygen API documentation page for this application. 00047 00048 @param -srcDoc \n 00049 Display Doxygen source documentation page for this application. 00050 00051 \*---------------------------------------------------------------------------*/ 00052 00053 #include <finiteVolume/fvCFD.H> 00054 #include <engine/engineTime.H> 00055 #include <engine/engineMesh.H> 00056 00057 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * // 00058 00059 int main(int argc, char *argv[]) 00060 { 00061 #include <OpenFOAM/setRootCase.H> 00062 #include <engine/createEngineTime.H> 00063 #include <engine/createEngineMesh.H> 00064 00065 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * // 00066 00067 scalar eps = 1.0e-10; 00068 scalar fullCycle = 360.0; 00069 00070 scalar ca0 = -180.0; 00071 scalar ca1 = 0.0; 00072 00073 while (runTime.theta() > ca0) 00074 { 00075 ca0 += fullCycle; 00076 ca1 += fullCycle; 00077 } 00078 00079 while (mag(runTime.theta() - ca0) > eps) 00080 { 00081 scalar t0 = runTime.userTimeToTime(ca0 - runTime.theta()); 00082 runTime.setDeltaT(t0); 00083 runTime++; 00084 Info<< "CA = " << runTime.theta() << endl; 00085 mesh.move(); 00086 } 00087 00088 scalar Vmax = sum(mesh.V().field()); 00089 00090 while (mag(runTime.theta()-ca1) > eps) 00091 { 00092 scalar t1 = runTime.userTimeToTime(ca1-runTime.theta()); 00093 runTime.setDeltaT(t1); 00094 runTime++; 00095 Info<< "CA = " << runTime.theta() << endl; 00096 mesh.move(); 00097 } 00098 00099 scalar Vmin = sum(mesh.V().field()); 00100 00101 Info<< "\nVmax = " << Vmax; 00102 Info<< ", Vmin = " << Vmin << endl; 00103 Info<< "Vmax/Vmin = " << Vmax/Vmin << endl; 00104 Info<< "\nEnd" << endl; 00105 00106 return 0; 00107 } 00108 00109 00110 // ************************ vim: set sw=4 sts=4 et: ************************ //
