foam-extend4.1-coherent-io/applications/solvers/basic/PODSolver/PODSolver.C

/*---------------------------------------------------------------------------*\
  =========                 |
  \\      /  F ield         | foam-extend: Open Source CFD
   \\    /   O peration     | Version:     3.2
    \\  /    A nd           | Web:         http://www.foam-extend.org
     \\/     M anipulation  | For copyright notice see file Copyright
-------------------------------------------------------------------------------
License
    This file is part of foam-extend.

    foam-extend 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.

    foam-extend 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 foam-extend.  If not, see <http://www.gnu.org/licenses/>.

Application
    PODsolver

Description
    Proper orthogonal decomposition solver with run-time selectable
    physical model

\*---------------------------------------------------------------------------*/

#include "fvCFD.H"
#include "PODODE.H"
#include "ODESolver.H"

// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //

int main(int argc, char *argv[])
{

#   include "setRootCase.H"

#   include "createTime.H"
#   include "createMesh.H"

    Info<< "Reading PODsolverDict\n" << endl;

    IOdictionary PODsolverDict
    (
        IOobject
        (
            "PODsolverDict",
            runTime.system(),
            mesh,
            IOobject::MUST_READ,
            IOobject::NO_WRITE
        )
    );

    // Create equation
    autoPtr<PODODE> equation
    (
        PODODE::New(mesh, PODsolverDict)
    );

    // Create solver
    autoPtr<ODESolver> solver =
        ODESolver::New
        (
            PODsolverDict.lookup("solver"),
            equation()
        );

    // Read required accuracy
    scalar eps = readScalar(PODsolverDict.lookup("eps"));

    Info<< "\nStarting time loop\n" << endl;

    for (runTime++; !runTime.end(); runTime++)
    {
        Info<< "Time = " << runTime.timeName() << nl << endl;

        solver->solve
        (
            runTime.value(),
            runTime.value() + runTime.deltaT().value(),
            eps,
            runTime.deltaT().value()
        );

        // Create fields and recalculate properties
        if (runTime.outputTime())
        {
            Info << "Writing fields" << endl;
            equation->write();
        }
    }

    Info<< "End\n" << endl;

    return(0);
}


// ************************************************************************* //