142 lines
4.1 KiB
C
142 lines
4.1 KiB
C
/*---------------------------------------------------------------------------*\
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========= |
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\\ / F ield | foam-extend: Open Source CFD
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\\ / O peration | Version: 4.0
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\\ / A nd | Web: http://www.foam-extend.org
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\\/ M anipulation | For copyright notice see file Copyright
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-------------------------------------------------------------------------------
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License
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This file is part of foam-extend.
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foam-extend is free software: you can redistribute it and/or modify it
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under the terms of the GNU General Public License as published by the
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Free Software Foundation, either version 3 of the License, or (at your
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option) any later version.
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foam-extend is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with foam-extend. If not, see <http://www.gnu.org/licenses/>.
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Application
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MRFPorousFoam
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Description
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Steady-state solver for incompressible, turbulent flow, with implicit
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coupling between pressure and velocity achieved by fvBlockMatrix.
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Turbulence is in this version solved using the existing turbulence
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structure.
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Added support for MRF and porous zones
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Authors
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Hrvoje Jasak, Wikki Ltd.
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\*---------------------------------------------------------------------------*/
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#include "fvCFD.H"
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#include "fvBlockMatrix.H"
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#include "singlePhaseTransportModel.H"
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#include "RASModel.H"
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#include "MRFZones.H"
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#include "porousZones.H"
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// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
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int main(int argc, char *argv[])
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{
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# include "setRootCase.H"
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# include "createTime.H"
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# include "createMesh.H"
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# include "createFields.H"
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# include "createMRF.H"
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# include "createPorous.H"
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# include "initContinuityErrs.H"
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# include "initConvergenceCheck.H"
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Info<< "\nStarting time loop\n" << endl;
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while (runTime.loop())
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{
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# include "readBlockSolverControls.H"
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# include "readFieldBounds.H"
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Info<< "Time = " << runTime.timeName() << nl << endl;
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p.storePrevIter();
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// Initialize the Up block system (matrix, source and reference to Up)
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fvBlockMatrix<vector4> UpEqn(Up);
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// Assemble and insert momentum equation
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# include "UEqn.H"
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// Assemble and insert pressure equation
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# include "pEqn.H"
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// Assemble and insert coupling terms
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# include "couplingTerms.H"
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// Solve the block matrix
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residual = UpEqn.solve();
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maxResidual = cmptMax(residual.initialResidual());
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// Check for divergence
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if (mag(residual.finalResidual() - residual.initialResidual()) > 1)
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{
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Info<< "DIVERGENCE: rescue step" << endl;
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// Solving potential flow equation and correcting velocities
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phi = (fvc::interpolate(U) & mesh.Sf());
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solve
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(
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tpEqn()
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==
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- fvc::div(U)
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);
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phi += tpEqn().flux() + tpresSource;
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U = fvc::reconstruct(phi);
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}
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else
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{
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// Retrieve solution
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UpEqn.retrieveSolution(0, U.internalField());
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UpEqn.retrieveSolution(3, p.internalField());
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U.correctBoundaryConditions();
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p.correctBoundaryConditions();
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phi = (fvc::interpolate(U) & mesh.Sf())
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+ tpEqn().flux()
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+ tpresSource;
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}
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// Make flux relative in rotating zones
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mrfZones.relativeFlux(phi);
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# include "continuityErrs.H"
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# include "boundPU.H"
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p.relax();
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turbulence->correct();
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runTime.write();
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Info<< "ExecutionTime = " << runTime.elapsedCpuTime() << " s"
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<< " ClockTime = " << runTime.elapsedClockTime() << " s"
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<< nl << endl;
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# include "convergenceCheck.H"
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}
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Info<< "End\n" << endl;
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return 0;
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}
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