100 lines
2.8 KiB
C
100 lines
2.8 KiB
C
/*---------------------------------------------------------------------------*\
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========= |
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\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
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\\ / O peration |
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\\ / A nd | Copyright (C) 1991-2008 OpenCFD Ltd.
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\\/ M anipulation |
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-------------------------------------------------------------------------------
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License
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This file is part of OpenFOAM.
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OpenFOAM is free software; you can redistribute it and/or modify it
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under the terms of the GNU General Public License as published by the
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Free Software Foundation; either version 2 of the License, or (at your
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option) any later version.
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OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
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ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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for more details.
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You should have received a copy of the GNU General Public License
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along with OpenFOAM; if not, write to the Free Software Foundation,
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Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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Application
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engineCompRatioFoam
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Description
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Calculate the geometric compression ratio.
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Note that if you have valves and/or extra volumes it will not work,
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since it calculates the volume at BDC and TCD.
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\*---------------------------------------------------------------------------*/
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#include "fvCFD.H"
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#include "engineTime.H"
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#include "engineMesh.H"
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// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
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int main(int argc, char *argv[])
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{
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# include "setRootCase.H"
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# include "createEngineTime.H"
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# include "createEngineMesh.H"
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// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
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scalar eps = 1.0e-10;
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scalar fullCycle = 360.0;
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scalar ca0 = -180.0;
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scalar ca1 = 0.0;
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scalar ca = runTime.theta();
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while (ca > ca0)
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{
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ca0 += fullCycle;
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ca1 += fullCycle;
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}
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if (mag(ca - ca0) > eps)
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{
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while(mag(ca - ca0) > eps)
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{
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ca = runTime.theta();
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scalar t0 = runTime.userTimeToTime(ca0 - ca);
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runTime.setDeltaT(t0);
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runTime++;
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Info << "CA = " << ca << endl;
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mesh.move();
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}
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}
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scalar Vmax = sum(mesh.V().field());
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while(mag(ca-ca1) > eps)
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{
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ca = runTime.theta();
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scalar t1 = runTime.userTimeToTime(ca1-ca);
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runTime.setDeltaT(t1);
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runTime++;
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Info << "CA = " << runTime.theta() << endl;
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mesh.move();
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}
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scalar Vmin = sum(mesh.V().field());
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Info << "\nVmax = " << Vmax;
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Info << ", Vmin = " << Vmin << endl;
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Info << "Vmax/Vmin = " << Vmax/Vmin << endl;
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Info << "\n end\n";
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return(0);
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}
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// ************************************************************************* //
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