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twoPhaseEulerFoam: Minor improvement to the handling of p_rgh->p after the pEqn

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Henry
2015-04-20 20:48:12 +01:00
parent 971e5a67d5
commit 828ca8322c
1 changed files with 21 additions and 14 deletions
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35
applications/solvers/multiphase/twoPhaseEulerFoam/pEqn.H
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@ -292,10 +292,6 @@ while (pimple.correct())
// Optionally relax pressure for velocity correction // Optionally relax pressure for velocity correction
p_rgh.relax(); p_rgh.relax();
// Update the static pressure
p = max(p_rgh + rho*gh, pMin);
p_rgh = p - rho*gh;
mSfGradp = pEqnIncomp.flux()/rAUf; mSfGradp = pEqnIncomp.flux()/rAUf;
// Partial-elimination phase-velocity corrector // Partial-elimination phase-velocity corrector
@ -329,17 +325,28 @@ while (pimple.correct())
} }
} }
// Update densities from change in p // Update and limit the static pressure
p = max(p_rgh + rho*gh, pMin);
// Limit p_rgh
p_rgh = p - rho*gh;
// Update densities from change in p_rgh
rho1 += psi1*(p_rgh - p_rgh_0); rho1 += psi1*(p_rgh - p_rgh_0);
rho2 += psi2*(p_rgh - p_rgh_0); rho2 += psi2*(p_rgh - p_rgh_0);
// Update the phase kinetic energies // Correct p_rgh for consistency with p and the updated densities
K1 = 0.5*magSqr(U1); rho = fluid.rho();
K2 = 0.5*magSqr(U2); p_rgh = p - rho*gh;
p_rgh.correctBoundaryConditions();
// Update the pressure time-derivative if required }
if (thermo1.dpdt() || thermo2.dpdt())
{ // Update the phase kinetic energies
dpdt = fvc::ddt(p); K1 = 0.5*magSqr(U1);
} K2 = 0.5*magSqr(U2);
// Update the pressure time-derivative if required
if (thermo1.dpdt() || thermo2.dpdt())
{
dpdt = fvc::ddt(p);
} }