pimpleFoam.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
    pimpleFoam
 
Group
    grpIncompressibleSolvers
 
Description
    Large time-step transient solver for incompressible, flow using the PIMPLE
    (merged PISO-SIMPLE) algorithm.
 
    \heading Solver details
    The solver uses the PIMPLE (merged PISO-SIMPLE) algorithm to solve the
    continuity equation:
 
        \f[
            \div \vec{U} = 0
        \f]
 
    and momentum equation:
 
        \f[
            \ddt{\vec{U}} + \div \left( \vec{U} \vec{U} \right) - \div \gvec{R}
          = - \grad p + \vec{S}_U
        \f]
 
    Where:
    \vartable
        \vec{U} | Velocity
        p       | Pressure
        \vec{R} | Stress tensor
        \vec{S}_U | Momentum source
    \endvartable
 
    Sub-models include:
    - turbulence modelling, i.e. laminar, RAS or LES
    - run-time selectable MRF and finite volume options, e.g. explicit porosity
 
    \heading Required fields
    \plaintable
        U       | Velocity [m/s]
        p       | Kinematic pressure, p/rho [m2/s2]
        <turbulence fields> | As required by user selection
    \endplaintable
 
\*---------------------------------------------------------------------------*/
 
#include "fvCFD.H"
#include "singlePhaseTransportModel.H"
#include "turbulentTransportModel.H"
#include "pimpleControl.H"
#include "fvOptions.H"
#include "fixedFluxPressureFvPatchScalarField.H"
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
int main(int argc, char *argv[])
{
    #include "setRootCase.H"
    #include "createTime.H"
    #include "createMesh.H"
 
    pimpleControl pimple(mesh);
 
    #include "createTimeControls.H"
    #include "createFields.H"
    #include "createMRF.H"
    #include "createFvOptions.H"
    #include "initContinuityErrs.H"
 
    turbulence->validate();
 
    // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
    Info<< "\nStarting time loop\n" << endl;
 
    while (runTime.run())
    {
        #include "readTimeControls.H"
        #include "CourantNo.H"
        #include "setDeltaT.H"
 
        runTime++;
 
        Info<< "Time = " << runTime.timeName() << nl << endl;
 
        // --- Pressure-velocity PIMPLE corrector loop
        while (pimple.loop())
        {
            #include "UEqn.H"
 
            // --- Pressure corrector loop
            while (pimple.correct())
            {
                #include "pEqn.H"
            }
 
            if (pimple.turbCorr())
            {
                laminarTransport.correct();
                turbulence->correct();
            }
        }
 
        runTime.write();
 
        Info<< "ExecutionTime = " << runTime.elapsedCpuTime() << " s"
            << "  ClockTime = " << runTime.elapsedClockTime() << " s"
            << nl << endl;
    }
 
    Info<< "End\n" << endl;
 
    return 0;
}
 
 
// ************************************************************************* //