61 lines
1.6 KiB
C
61 lines
1.6 KiB
C
PtrList<fvVectorMatrix> UEqns(fluid.phases().size());
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autoPtr<multiphaseSystem::dragCoeffFields> dragCoeffs(fluid.dragCoeffs());
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int phasei = 0;
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forAllIter(PtrDictionary<phaseModel>, fluid.phases(), iter)
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{
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phaseModel& phase = iter();
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const volScalarField& alpha = phase;
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volVectorField& U = phase.U();
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volScalarField nuEff(sgsModel->nut() + iter().nu());
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UEqns.set
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(
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phasei,
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new fvVectorMatrix
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(
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fvm::ddt(alpha, U)
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+ fvm::div(phase.phiAlpha(), U)
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- fvm::Sp(fvc::ddt(alpha) + fvc::div(phase.phiAlpha()), U)
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+ (alpha/phase.rho())*fluid.Cvm(phase)*
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(
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fvm::ddt(U)
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+ fvm::div(phase.phi(), U)
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- fvm::Sp(fvc::div(phase.phi()), U)
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)
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- fvm::laplacian(alpha*nuEff, U)
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- fvc::div
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(
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alpha*(nuEff*dev(T(fvc::grad(U))) /*- ((2.0/3.0)*I)*k*/),
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"div(Rc)"
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)
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==
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- fvm::Sp(fluid.dragCoeff(phase, dragCoeffs())/phase.rho(), U)
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//- (alpha*phase.rho())*fluid.lift(phase)
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+ (alpha/phase.rho())*fluid.Svm(phase)
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- fvm::Sp
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(
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slamDampCoeff
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*max
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(
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mag(U.dimensionedInternalField()) - maxSlamVelocity,
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dimensionedScalar("U0", dimVelocity, 0)
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)
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/pow(mesh.V(), 1.0/3.0),
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U
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)
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)
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);
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mrfZones.addCoriolis
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(
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alpha*(1 + (1/phase.rho())*fluid.Cvm(phase)),
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UEqns[phasei]
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);
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UEqns[phasei].relax();
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phasei++;
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}
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