129 lines
4.2 KiB
C
129 lines
4.2 KiB
C
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/*---------------------------------------------------------------------------*\
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========= |
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\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
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\\ / O peration |
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\\ / A nd | Copyright held by original author
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\\/ M anipulation |
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-------------------------------------------------------------------------------
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License
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This file is part of OpenFOAM.
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OpenFOAM 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 2 of the License, or (at your
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option) any later version.
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OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
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ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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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 OpenFOAM; if not, write to the Free Software Foundation,
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Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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Application
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pUCoupledFoam
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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 BlockLduMatrix
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Turbulence is in this version solved using the existing turbulence
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structure.
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Authors
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Klas Jareteg, Chalmers University of Technology,
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Vuko Vukcevic, FMENA Zagreb.
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\*---------------------------------------------------------------------------*/
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#include "fvCFD.H"
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#include "singlePhaseTransportModel.H"
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#include "RASModel.H"
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#include "VectorNFieldTypes.H"
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#include "volVectorNFields.H"
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#include "blockLduSolvers.H"
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#include "blockVectorNMatrices.H"
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#include "blockMatrixTools.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 "initContinuityErrs.H"
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# include "readBlockSolverControls.H"
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// Calculate coupling matrices only once since the mesh doesn't change and
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// implicit div and grad operators are only dependant on Sf. Actually
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// coupling terms (div(U) and grad(p)) in blockMatrix do not change, so they
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// could be inserted only once, resetting other parts of blockMatrix to zero
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// at the end of each time step. VV, 30/April/2014
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# include "calculateCouplingMatrices.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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Info<< "Time = " << runTime.timeName() << nl << endl;
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p.storePrevIter();
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// Initialize block matrix
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# include "initializeBlockMatrix.H"
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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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// Insert coupling, updating the boundary contributions
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// Last argument in insertBlockCoupling says if the first location
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// should be incremented. This is needed for arbitrary positioning
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// of U and p in the system. This could be better. VV, 30/April/2014
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blockMatrixTools::insertBlockCoupling(3, 0, UInp, U, A, b, false);
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blockMatrixTools::insertBlockCoupling(0, 3, pInU, p, A, b, true);
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// Solve the block matrix
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BlockSolverPerformance<vector4> solverPerf =
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BlockLduSolver<vector4>::New
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(
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word("Up"),
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A,
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mesh.solutionDict().solver("Up")
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)->solve(Up, b);
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solverPerf.print();
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// Retrieve solution
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blockMatrixTools::retrieveSolution(0, U.internalField(), Up);
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blockMatrixTools::retrieveSolution(3, p.internalField(), Up);
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U.correctBoundaryConditions();
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p.correctBoundaryConditions();
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phi = (fvc::interpolate(U) & mesh.Sf()) + pEqn.flux() + presSource;
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p.relax();
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turbulence->correct();
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runTime.write();
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# include "continuityErrs.H"
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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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}
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Info<< "End\n" << endl;
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return 0;
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}
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