128 lines
4.2 KiB
C
128 lines
4.2 KiB
C
/*---------------------------------------------------------------------------*\
|
|
========= |
|
|
\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
|
|
\\ / O peration |
|
|
\\ / A nd | Copyright held by original author
|
|
\\/ 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 2 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, write to the Free Software Foundation,
|
|
Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
|
|
|
|
Application
|
|
pUCoupledFoam
|
|
|
|
Description
|
|
Steady-state solver for incompressible, turbulent flow, with implicit
|
|
coupling between pressure and velocity achieved by BlockLduMatrix
|
|
Turbulence is in this version solved using the existing turbulence
|
|
structure.
|
|
|
|
Authors
|
|
Klas Jareteg, Chalmers University of Technology,
|
|
Vuko Vukcevic, FMENA Zagreb.
|
|
|
|
\*---------------------------------------------------------------------------*/
|
|
|
|
#include "fvCFD.H"
|
|
#include "singlePhaseTransportModel.H"
|
|
#include "RASModel.H"
|
|
|
|
#include "VectorNFieldTypes.H"
|
|
#include "volVectorNFields.H"
|
|
#include "blockLduSolvers.H"
|
|
#include "blockVectorNMatrices.H"
|
|
|
|
#include "blockMatrixTools.H"
|
|
|
|
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
|
|
|
|
int main(int argc, char *argv[])
|
|
{
|
|
|
|
# include "setRootCase.H"
|
|
# include "createTime.H"
|
|
# include "createMesh.H"
|
|
# include "createFields.H"
|
|
# include "initContinuityErrs.H"
|
|
# include "readBlockSolverControls.H"
|
|
|
|
// Calculate coupling matrices only once since the mesh doesn't change and
|
|
// implicit div and grad operators are only dependant on Sf. Actually
|
|
// coupling terms (div(U) and grad(p)) in blockMatrix do not change, so they
|
|
// could be inserted only once, resetting other parts of blockMatrix to zero
|
|
// at the end of each time step. VV, 30/April/2014
|
|
# include "calculateCouplingMatrices.H"
|
|
|
|
Info<< "\nStarting time loop\n" << endl;
|
|
while (runTime.loop())
|
|
{
|
|
Info<< "Time = " << runTime.timeName() << nl << endl;
|
|
|
|
p.storePrevIter();
|
|
|
|
// Initialize block matrix
|
|
# include "initializeBlockMatrix.H"
|
|
|
|
// Assemble and insert momentum equation
|
|
# include "UEqn.H"
|
|
|
|
// Assemble and insert pressure equation
|
|
# include "pEqn.H"
|
|
|
|
// Insert coupling, updating the boundary contributions
|
|
// Last argument in insertBlockCoupling says if the first location
|
|
// should be incremented. This is needed for arbitrary positioning
|
|
// of U and p in the system. This could be better. VV, 30/April/2014
|
|
blockMatrixTools::insertBlockCoupling(3, 0, UInp, U, A, b, false);
|
|
blockMatrixTools::insertBlockCoupling(0, 3, pInU, p, A, b, true);
|
|
|
|
// Solve the block matrix
|
|
BlockSolverPerformance<vector4> solverPerf =
|
|
BlockLduSolver<vector4>::New
|
|
(
|
|
word("Up"),
|
|
A,
|
|
mesh.solutionDict().solver("Up")
|
|
)->solve(Up, b);
|
|
|
|
solverPerf.print();
|
|
|
|
// Retrieve solution
|
|
blockMatrixTools::retrieveSolution(0, U.internalField(), Up);
|
|
blockMatrixTools::retrieveSolution(3, p.internalField(), Up);
|
|
|
|
U.correctBoundaryConditions();
|
|
p.correctBoundaryConditions();
|
|
|
|
phi = (fvc::interpolate(U) & mesh.Sf()) + pEqn.flux() + presSource;
|
|
|
|
# include "continuityErrs.H"
|
|
|
|
p.relax();
|
|
|
|
turbulence->correct();
|
|
runTime.write();
|
|
|
|
Info<< "ExecutionTime = " << runTime.elapsedCpuTime() << " s"
|
|
<< " ClockTime = " << runTime.elapsedClockTime() << " s"
|
|
<< nl << endl;
|
|
}
|
|
|
|
Info<< "End\n" << endl;
|
|
|
|
return 0;
|
|
}
|