From 828ca8322c96d403ceb93f62372b9355b1110096 Mon Sep 17 00:00:00 2001
From: Henry <Henry>
Date: Mon, 20 Apr 2015 20:48:12 +0100
Subject: [PATCH] twoPhaseEulerFoam: Minor improvement to the handling of
p_rgh->p after the pEqn
---
.../multiphase/twoPhaseEulerFoam/pEqn.H | 33 +++++++++++--------
1 file changed, 20 insertions(+), 13 deletions(-)
diff --git a/applications/solvers/multiphase/twoPhaseEulerFoam/pEqn.H b/applications/solvers/multiphase/twoPhaseEulerFoam/pEqn.H
index b0a5ae9e7ce..dba4ad8a360 100644
--- a/applications/solvers/multiphase/twoPhaseEulerFoam/pEqn.H
+++ b/applications/solvers/multiphase/twoPhaseEulerFoam/pEqn.H
@@ -292,10 +292,6 @@ while (pimple.correct())
// Optionally relax pressure for velocity correction
p_rgh.relax();
- // Update the static pressure
- p = max(p_rgh + rho*gh, pMin);
- p_rgh = p - rho*gh;
-
mSfGradp = pEqnIncomp.flux()/rAUf;
// 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);
rho2 += psi2*(p_rgh - p_rgh_0);
- // Update the phase kinetic energies
- K1 = 0.5*magSqr(U1);
- K2 = 0.5*magSqr(U2);
+ // Correct p_rgh for consistency with p and the updated densities
+ rho = fluid.rho();
+ p_rgh = p - rho*gh;
+ p_rgh.correctBoundaryConditions();
+}
+
+// Update the phase kinetic energies
+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);
- }
+// Update the pressure time-derivative if required
+if (thermo1.dpdt() || thermo2.dpdt())
+{
+ dpdt = fvc::ddt(p);
}
--
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