Initial commit for version 2.0.x patch release
[OpenFOAM-2.0.x.git] / applications / utilities / postProcessing / miscellaneous / engineCompRatio / engineCompRatio.C
blobfa96c1bfddaf33ca9544e3ebf138cc9af3c6e7a5
1 /*---------------------------------------------------------------------------*\
2   =========                 |
3   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
4    \\    /   O peration     |
5     \\  /    A nd           | Copyright (C) 2004-2010 OpenCFD Ltd.
6      \\/     M anipulation  |
7 -------------------------------------------------------------------------------
8 License
9     This file is part of OpenFOAM.
11     OpenFOAM is free software: you can redistribute it and/or modify it
12     under the terms of the GNU General Public License as published by
13     the Free Software Foundation, either version 3 of the License, or
14     (at your option) any later version.
16     OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
17     ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
18     FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
19     for more details.
21     You should have received a copy of the GNU General Public License
22     along with OpenFOAM.  If not, see <http://www.gnu.org/licenses/>.
24 Application
25     engineCompRatioFoam
27 Description
28     Calculate the geometric compression ratio.
29     Note that if you have valves and/or extra volumes it will not work,
30     since it calculates the volume at BDC and TCD.
32 \*---------------------------------------------------------------------------*/
34 #include "fvCFD.H"
35 #include "engineTime.H"
36 #include "engineMesh.H"
38 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
40 int main(int argc, char *argv[])
42     #include "setRootCase.H"
43     #include "createEngineTime.H"
44     #include "createEngineMesh.H"
46     // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
48     scalar eps = 1.0e-10;
49     scalar fullCycle = 360.0;
51     scalar ca0 = -180.0;
52     scalar ca1 = 0.0;
54     while (runTime.theta() > ca0)
55     {
56         ca0 += fullCycle;
57         ca1 += fullCycle;
58     }
60     while (mag(runTime.theta() - ca0) > eps)
61     {
62         scalar t0 = runTime.userTimeToTime(ca0 - runTime.theta());
63         runTime.setDeltaT(t0);
64         runTime++;
65         Info<< "CA = " << runTime.theta() << endl;
66         mesh.move();
67     }
69     scalar Vmax = sum(mesh.V().field());
71     while (mag(runTime.theta()-ca1) > eps)
72     {
73         scalar t1 = runTime.userTimeToTime(ca1-runTime.theta());
74         runTime.setDeltaT(t1);
75         runTime++;
76         Info<< "CA = " << runTime.theta() << endl;
77         mesh.move();
78     }
80     scalar Vmin = sum(mesh.V().field());
82     Info<< "\nVmax = " << Vmax;
83     Info<< ", Vmin = " << Vmin << endl;
84     Info<< "Vmax/Vmin = " << Vmax/Vmin << endl;
85     Info<< "\nEnd\n" << endl;
87     return 0;
91 // ************************************************************************* //