pPrime2.C

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/*---------------------------------------------------------------------------*\
  =========                 |
  \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
   \\    /   O peration     |
    \\  /    A nd           | Copyright (C) 2011-2015 OpenFOAM Foundation
     \\/     M anipulation  |
-------------------------------------------------------------------------------
License
    This file is part of OpenFOAM.
 
    OpenFOAM is free software: you can redistribute it and/or modify it
    under the terms of the GNU General Public License as published by
    the Free Software Foundation, either version 3 of the License, or
    (at your option) any later version.
 
    OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
    FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
    for more details.
 
    You should have received a copy of the GNU General Public License
    along with OpenFOAM.  If not, see <http://www.gnu.org/licenses/>.
 
Application
    pPrime2
 
Description
    Calculates and writes the scalar field of pPrime2 (sqr(p - pMean)) at
    each time
 
\*---------------------------------------------------------------------------*/
 
#include "fvCFD.H"
 
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
int main(int argc, char *argv[])
{
    timeSelector::addOptions();
    #include "addRegionOption.H"
 
    #include "setRootCase.H"
    #include "createTime.H"
 
    instantList timeDirs = timeSelector::select0(runTime, args);
 
    #include "createNamedMesh.H"
 
    runTime.setTime(timeDirs.last(), timeDirs.size()-1);
 
    volScalarField pMean
    (
        IOobject
        (
            "pMean",
            runTime.timeName(),
            mesh,
            IOobject::MUST_READ
        ),
        mesh
    );
 
    forAll(timeDirs, timeI)
    {
        runTime.setTime(timeDirs[timeI], timeI);
 
        Info<< "Time = " << runTime.timeName() << endl;
 
        IOobject pheader
        (
            "p",
            runTime.timeName(),
            mesh,
            IOobject::MUST_READ
        );
 
        // Check p exists
        if (pheader.headerOk())
        {
            mesh.readUpdate();
 
            Info<< "    Reading p" << endl;
            volScalarField p(pheader, mesh);
 
            Info<< "    Calculating pPrime2" << endl;
            volScalarField pPrime2
            (
                IOobject
                (
                    "pPrime2",
                    runTime.timeName(),
                    mesh,
                    IOobject::NO_READ
                ),
                sqr(p - pMean)
            );
            pPrime2.write();
        }
        else
        {
            Info<< "    No p" << endl;
        }
 
        Info<< endl;
    }
 
    Info<< nl << "End" << nl << endl;
 
    return 0;
}
 
 
// ************************************************************************* //