165 lines
4.7 KiB
C++
165 lines
4.7 KiB
C++
/*---------------------------------------------------------------------------*\
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========= |
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\\ / F ield | foam-extend: Open Source CFD
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\\ / O peration | Version: 4.1
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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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interfaceTrackinFoam
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Description
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Incompressible laminar CFD code for simulation of a single bubble rising
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in a stil liquid. Interface between fluid phases is tracked using moving
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mesh.
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\*---------------------------------------------------------------------------*/
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#include "fvCFD.H"
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#include "dynamicFvMesh.H"
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#include "freeSurface.H"
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#include "inletOutletFvPatchFields.H"
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#include "fixedGradientFvPatchFields.H"
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#include "boundBox.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 "createDynamicFvMesh.H"
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pimpleControl pimple(mesh);
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# include "createFields.H"
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# include "initContinuityErrs.H"
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# include "createBubble.H"
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# include "createSurfactantConcentrationField.H"
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// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
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Info << "\nStarting time loop\n" << endl;
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for (runTime++; !runTime.end(); runTime++)
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{
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Info << "Time = " << runTime.value() << endl << endl;
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interface.moveMeshPointsForOldFreeSurfDisplacement();
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interface.updateDisplacementDirections();
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interface.predictPoints();
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Info<< "\nMax surface Courant Number = "
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<< interface.maxCourantNumber() << endl << endl;
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while (pimple.loop())
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{
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// Update interface bc
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interface.updateBoundaryConditions();
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// Make the fluxes relative
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phi -= fvc::meshPhi(rho, U);
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# include "CourantNo.H"
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fvVectorMatrix UEqn
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(
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fvm::ddt(rho, U)
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+ rho*aF
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+ fvm::div(fvc::interpolate(rho)*phi, U, "div(phi,U)")
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- fvm::laplacian(mu, U)
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);
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solve(UEqn == -fvc::grad(p));
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// --- PISO loop
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while (pimple.correct())
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{
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volScalarField AU = UEqn.A();
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U = UEqn.H()/AU;
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phi = (fvc::interpolate(U) & mesh.Sf());
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# include "scalePhi.H"
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# include "scaleSpacePhi.H"
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// Non-orthogonal pressure corrector loop
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while (pimple.correctNonOrthogonal())
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{
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fvScalarMatrix pEqn
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(
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fvm::laplacian(1.0/AU, p)
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== fvc::div(phi)
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);
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# include "setReference.H"
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pEqn.solve();
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if (pimple.finalNonOrthogonalIter())
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{
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phi -= pEqn.flux();
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}
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}
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# include "continuityErrs.H"
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// Momentum corrector
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U -= fvc::grad(p)/AU;
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U.correctBoundaryConditions();
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}
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# include "solveBulkSurfactant.H"
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interface.correctPoints();
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# include "freeSurfaceContinuityErrs.H"
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}
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# include "updateMovingReferenceFrame.H"
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# include "volContinuity.H"
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Info << "Total surface tension force: "
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<< interface.totalSurfaceTensionForce() << endl;
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vector totalForce =
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interface.totalViscousForce()
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+ interface.totalPressureForce();
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Info << "Total force: " << totalForce << endl;
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runTime.write();
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Info << "ExecutionTime = "
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<< scalar(runTime.elapsedCpuTime())
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<< " s\n" << endl << 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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