Burgers.C

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/*---------------------------------------------------------------------------*\
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 * In real Time Highly Advanced Computational Applications for Finite Volumes
 * Copyright (C) 2017 by the ITHACA-FV authors
-------------------------------------------------------------------------------
 
  License
  This file is part of ITHACA-FV
 
  ITHACA-FV is free software: you can redistribute it and/or modify
  it under the terms of the GNU Lesser General Public License as published by
  the Free Software Foundation, either version 3 of the License, or
  (at your option) any later version.
 
  ITHACA-FV 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 Lesser General Public License for more details.
 
  You should have received a copy of the GNU Lesser General Public License
  along with ITHACA-FV. If not, see <http://www.gnu.org/licenses/>.
 
\*---------------------------------------------------------------------------*/
 
 
#include "Burgers.H"
 
// * * * * * * * * * * * * * * * Constructors * * * * * * * * * * * * * * * * //
// Constructor
Burgers::Burgers() {}
 
Burgers::Burgers(int argc, char* argv[])
    :
    UnsteadyProblem()
{
    _args = autoPtr<argList>
            (
                new argList(argc, argv)
            );
 
    if (!_args->checkRootCase())
    {
        Foam::FatalError.exit();
    }
 
    argList& args = _args();
#include "createTime.H"
#include "createMesh.H"
    _simple = autoPtr<simpleControl>
              (
                  new simpleControl
                  (
                      mesh
                  )
              );
    simpleControl& simple = _simple();
#include "createFields.H"
#include "createFvOptions.H"
    ITHACAdict = new IOdictionary
    (
        IOobject
        (
            "ITHACAdict",
            runTime.system(),
            mesh,
            IOobject::MUST_READ,
            IOobject::NO_WRITE
        )
    );
    para = ITHACAparameters::getInstance(mesh, runTime);
    offline = ITHACAutilities::check_off();
    podex = ITHACAutilities::check_pod();
    setTimes(runTime);
}
 
void Burgers::truthSolve(word folder)
{
    Time& runTime = _runTime();
    fvMesh& mesh = _mesh();
    volVectorField& U = _U();
    surfaceScalarField& phi = _phi();
    fv::options& fvOptions = _fvOptions();
    simpleControl& simple = _simple();
    dimensionedScalar& nu = _nu();
    counter = 1;
    ITHACAstream::exportSolution(U, name(counter), folder + name(folderN));
    counter++;
    nextWrite = startTime;
    nextWrite += writeEvery;
 
    while (_simple().loop())
    {
        auto start = std::chrono::system_clock::now();
        Info << "Time = " << _runTime().timeName() << nl << endl;
 
        while (simple.correctNonOrthogonal())
        {
            solve
            (
                fvm::ddt(U)
                + fvm::div(phi, U)
                - fvm::laplacian(nu, U)
            );
        }
 
        phi = linearInterpolate(U) & mesh.Sf();
 
        auto end = std::chrono::system_clock::now();
        auto elapsed = std::chrono::duration_cast<std::chrono::microseconds>(end - start);
        Info << "Elapsed: " << elapsed.count() << " microseconds\n";
        
        if (checkWrite(runTime))
        {
            ITHACAstream::exportSolution(U, name(counter), folder + name(folderN));
            counter++;
            Ufield.append(U.clone());
            nextWrite += writeEvery;
        }
    }
 
    folderN++;
}
 
void Burgers::restart()
{
    _U.clear();
    _phi.clear();
    _fvOptions.clear();
    _nu.clear();
    _transportProperties.clear();
    argList& args = _args();
    Time& runTime = _runTime();
    runTime.setTime(0, 1);
    Foam::fvMesh& mesh = _mesh();
#include "createFields.H"
#include "createFvOptions.H"
}