From 69d994e794d7506f4af0be3885e8ca2e6ef8c623 Mon Sep 17 00:00:00 2001
From: Henry Weller <http://cfd.direct>
Date: Thu, 25 Jun 2015 16:08:21 +0100
Subject: [PATCH] twoPhaseEulerFoam: Change the implicit particle-pressure and
turbulence dispersion to be phase-symmetric so that the results are
independent of which phase-fraction is solved.
---
.../twoPhaseEulerFoam/twoPhaseSystem/twoPhaseSystem.C | 9 ++++++---
1 file changed, 6 insertions(+), 3 deletions(-)
diff --git a/applications/solvers/multiphase/twoPhaseEulerFoam/twoPhaseSystem/twoPhaseSystem.C b/applications/solvers/multiphase/twoPhaseEulerFoam/twoPhaseSystem/twoPhaseSystem.C
index 2c686bd32d9..76af4a310a3 100644
--- a/applications/solvers/multiphase/twoPhaseEulerFoam/twoPhaseSystem/twoPhaseSystem.C
+++ b/applications/solvers/multiphase/twoPhaseEulerFoam/twoPhaseSystem/twoPhaseSystem.C
@@ -374,16 +374,19 @@ void Foam::twoPhaseSystem::solve()
surfaceScalarField phic("phic", phi_);
surfaceScalarField phir("phir", phi1 - phi2);
- surfaceScalarField alpha1f(fvc::interpolate(max(alpha1, scalar(0))));
+ tmp<surfaceScalarField> alpha1alpha2f;
if (pPrimeByA_.valid())
{
+ alpha1alpha2f =
+ fvc::interpolate(max(alpha1, scalar(0)))
+ *fvc::interpolate(max(alpha2, scalar(0)));
+
surfaceScalarField phiP
(
pPrimeByA_()*fvc::snGrad(alpha1, "bounded")*mesh_.magSf()
);
- phic += alpha1f*phiP;
phir += phiP;
}
@@ -520,7 +523,7 @@ void Foam::twoPhaseSystem::solve()
fvScalarMatrix alpha1Eqn
(
fvm::ddt(alpha1) - fvc::ddt(alpha1)
- - fvm::laplacian(alpha1f*pPrimeByA_(), alpha1, "bounded")
+ - fvm::laplacian(alpha1alpha2f*pPrimeByA_(), alpha1, "bounded")
);
alpha1Eqn.relax();
--
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