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/*---------------------------------------------------------------------------*\
========= |
\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
\\ / O peration |
\\ / A nd | Copyright (C) 2011-2016 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
dnsFoam
Chris Greenshields
committed
Direct numerical simulation solver for boxes of isotropic turbulence.
\*---------------------------------------------------------------------------*/
#include "fvCFD.H"
#include "Kmesh.H"
#include "UOprocess.H"
#include "fft.H"
#include "calcEk.H"
#include "graph.H"
#include "pisoControl.H"
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
int main(int argc, char *argv[])
{
#include "postProcess.H"
#include "setRootCase.H"
#include "createTime.H"
#include "createMeshNoClear.H"
#include "createControl.H"
#include "createFields.H"
#include "initContinuityErrs.H"
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
Info<< nl << "Starting time loop" << endl;
while (runTime.loop())
{
Info<< "Time = " << runTime.timeName() << nl << endl;
force.primitiveFieldRef() = ReImSum
(
fft::reverseTransform
(
K/(mag(K) + 1.0e-6) ^ forceGen.newField(), K.nn()
)
);
#include "globalProperties.H"
fvVectorMatrix UEqn
(
fvm::ddt(U)
+ fvm::div(phi, U)
- fvm::laplacian(nu, U)
==
force
);
solve(UEqn == -fvc::grad(p));
// --- PISO loop
while (piso.correct())
{
volScalarField rAU(1.0/UEqn.A());
surfaceScalarField rAUf("rAUf", fvc::interpolate(rAU));
volVectorField HbyA(constrainHbyA(rAU*UEqn.H(), U, p));
fvc::flux(HbyA)
// Update the pressure BCs to ensure flux consistency
constrainPressure(p, U, phiHbyA, rAUf);
fvScalarMatrix pEqn
(
fvm::laplacian(rAUf, p) == fvc::div(phiHbyA)
);
pEqn.solve(mesh.solver(p.select(piso.finalInnerIter())));
phi = phiHbyA - pEqn.flux();
#include "continuityErrs.H"
U = HbyA - rAU*fvc::grad(p);
U.correctBoundaryConditions();
}
runTime.write();
Henry Weller
committed
if (runTime.writeTime())
{
calcEk(U, K).write
(
runTime.path()/"graphs"/runTime.timeName(),
"Ek",
runTime.graphFormat()
);
}
Info<< "ExecutionTime = " << runTime.elapsedCpuTime() << " s"
<< " ClockTime = " << runTime.elapsedClockTime() << " s"
<< nl << endl;
}
Info<< "End\n" << endl;
return 0;
}
// ************************************************************************* //