194 lines
5.7 KiB
C++
194 lines
5.7 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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rhopSonicFoam
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Description
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Pressure-density-based compressible flow solver.
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\*---------------------------------------------------------------------------*/
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#include "fvCFD.H"
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#include "weighted.H"
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#include "gaussConvectionScheme.H"
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#include "multivariateGaussConvectionScheme.H"
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#include "MUSCL.H"
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#include "LimitedScheme.H"
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#include "boundaryTypes.H"
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#include "pimpleControl.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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pimpleControl pimple(mesh);
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# include "readThermodynamicProperties.H"
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# include "createFields.H"
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# include "createTimeControls.H"
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// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
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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.value() << nl << endl;
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scalar HbyAblend = readScalar(pimple.dict().lookup("HbyAblend"));
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# include "readTimeControls.H"
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scalar CoNum = max
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(
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mesh.surfaceInterpolation::deltaCoeffs()
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*mag(phiv)/mesh.magSf()
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).value()*runTime.deltaT().value();
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Info<< "Max Courant Number = " << CoNum << endl;
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# include "setDeltaT.H"
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while (pimple.loop())
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{
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magRhoU = mag(rhoU);
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H = (rhoE + p)/rho;
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fv::multivariateGaussConvectionScheme<scalar> mvConvection
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(
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mesh,
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fields,
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phiv,
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mesh.schemesDict().divScheme("div(phiv,rhoUH)")
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);
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solve
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(
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fvm::ddt(rho)
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+ mvConvection.fvmDiv(phiv, rho)
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);
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surfaceScalarField rhoUWeights =
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mvConvection.interpolationScheme()()(magRhoU)()
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.weights(magRhoU);
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weighted<vector> rhoUScheme(rhoUWeights);
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fvVectorMatrix rhoUEqn
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(
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fvm::ddt(rhoU)
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+ fv::gaussConvectionScheme<vector>(mesh, phiv, rhoUScheme)
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.fvmDiv(phiv, rhoU)
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);
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solve(rhoUEqn == -fvc::grad(p));
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solve
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(
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fvm::ddt(rhoE)
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+ mvConvection.fvmDiv(phiv, rhoE)
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==
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- mvConvection.fvcDiv(phiv, p)
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);
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T = (rhoE - 0.5*rho*magSqr(rhoU/rho))/Cv/rho;
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psi = 1.0/(R*T);
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p = rho/psi;
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while (pimple.correct())
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{
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volScalarField rrhoUA = 1.0/rhoUEqn.A();
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surfaceScalarField rrhoUAf("rrhoUAf", fvc::interpolate(rrhoUA));
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volVectorField HbyA = rrhoUA*rhoUEqn.H();
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surfaceScalarField HbyAWeights =
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HbyAblend*mesh.weights()
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+ (1.0 - HbyAblend)*
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LimitedScheme
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<vector, MUSCLLimiter<NVDTVD>, limitFuncs::magSqr>
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(mesh, phi, IStringStream("HbyA")()).weights(HbyA);
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phi =
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(
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surfaceInterpolationScheme<vector>::interpolate
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(HbyA, HbyAWeights) & mesh.Sf()
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)
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+ HbyAblend*fvc::ddtPhiCorr(rrhoUA, rho, rhoU, phi);
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surfaceScalarField phiGradp =
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rrhoUAf*mesh.magSf()*fvc::snGrad(p);
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phi -= phiGradp;
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# include "resetPhiPatches.H"
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surfaceScalarField rhof =
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mvConvection.interpolationScheme()()(rho)()
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.interpolate(rho);
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phiv = phi/rhof;
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fvScalarMatrix pEqn
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(
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fvm::ddt(psi, p)
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+ mvConvection.fvcDiv(phiv, rho)
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+ fvc::div(phiGradp)
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- fvm::laplacian(rrhoUAf, p)
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);
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pEqn.solve();
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phi += phiGradp + pEqn.flux();
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rho = psi*p;
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rhof =
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mvConvection.interpolationScheme()()(rho)()
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.interpolate(rho);
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phiv = phi/rhof;
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rhoU = HbyA - rrhoUA*fvc::grad(p);
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rhoU.correctBoundaryConditions();
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}
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}
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U = rhoU/rho;
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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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}
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Info<< "End\n" << endl;
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return 0;
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}
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// ************************************************************************* //
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