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77b03e2e0c
e.g. (fvc::interpolate(HbyA) & mesh.Sf()) -> fvc::flux(HbyA) This removes the need to create an intermediate face-vector field when computing fluxes which is more efficient, reduces the peak storage and improved cache coherency in addition to providing a simpler and cleaner API.
119 lines
2.7 KiB
C
119 lines
2.7 KiB
C
volScalarField rAU(1.0/UEqn.A());
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volScalarField rAtU(1.0/(1.0/rAU - UEqn.H1()));
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volVectorField HbyA(constrainHbyA(rAU*UEqn.H(), U, p));
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tUEqn.clear();
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bool closedVolume = false;
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if (simple.transonic())
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{
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surfaceScalarField phid
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(
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"phid",
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fvc::interpolate(psi)
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*fvc::flux(HbyA)
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);
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MRF.makeRelative(fvc::interpolate(psi), phid);
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surfaceScalarField phic
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(
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"phic",
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fvc::interpolate(rho*(rAtU - rAU))*fvc::snGrad(p)*mesh.magSf()
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);
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HbyA -= (rAU - rAtU)*fvc::grad(p);
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volScalarField rhorAtU("rhorAtU", rho*rAtU);
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while (simple.correctNonOrthogonal())
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{
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fvScalarMatrix pEqn
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(
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fvm::div(phid, p)
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+ fvc::div(phic)
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- fvm::laplacian(rhorAtU, p)
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==
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fvOptions(psi, p, rho.name())
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);
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// Relax the pressure equation to maintain diagonal dominance
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pEqn.relax();
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pEqn.setReference(pRefCell, pRefValue);
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pEqn.solve();
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if (simple.finalNonOrthogonalIter())
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{
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phi == phic + pEqn.flux();
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}
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}
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}
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else
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{
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surfaceScalarField phiHbyA("phiHbyA", fvc::flux(rho*HbyA));
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MRF.makeRelative(fvc::interpolate(rho), phiHbyA);
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closedVolume = adjustPhi(phiHbyA, U, p);
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phiHbyA += fvc::interpolate(rho*(rAtU - rAU))*fvc::snGrad(p)*mesh.magSf();
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HbyA -= (rAU - rAtU)*fvc::grad(p);
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volScalarField rhorAtU("rhorAtU", rho*rAtU);
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// Update the pressure BCs to ensure flux consistency
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constrainPressure(p, rho, U, phiHbyA, rhorAtU, MRF);
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while (simple.correctNonOrthogonal())
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{
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fvScalarMatrix pEqn
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(
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fvc::div(phiHbyA)
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- fvm::laplacian(rhorAtU, p)
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==
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fvOptions(psi, p, rho.name())
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);
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pEqn.setReference(pRefCell, pRefValue);
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pEqn.solve();
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if (simple.finalNonOrthogonalIter())
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{
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phi = phiHbyA + pEqn.flux();
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}
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}
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}
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// The incompressibe form of the continuity error check is appropriate for
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// steady-state compressible also.
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#include "incompressible/continuityErrs.H"
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// Explicitly relax pressure for momentum corrector
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p.relax();
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U = HbyA - rAtU*fvc::grad(p);
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U.correctBoundaryConditions();
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fvOptions.correct(U);
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// For closed-volume cases adjust the pressure and density levels
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// to obey overall mass continuity
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if (closedVolume)
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{
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p += (initialMass - fvc::domainIntegrate(psi*p))
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/fvc::domainIntegrate(psi);
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}
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// Recalculate density from the relaxed pressure
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rho = thermo.rho();
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rho = max(rho, rhoMin);
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rho = min(rho, rhoMax);
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if (!simple.transonic())
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{
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rho.relax();
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}
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Info<< "rho max/min : " << max(rho).value() << " " << min(rho).value() << endl;
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