From e10a214c6b94a4e472fb8dcd9364e11c4682bce7 Mon Sep 17 00:00:00 2001
From: Henry Weller <http://openfoam.org>
Date: Fri, 28 Feb 2020 17:06:24 +0000
Subject: [PATCH] buoyantPimpleFoam: Added correction of rhoUf and dpdt for
 moving meshes

---
 .../solvers/heatTransfer/buoyantPimpleFoam/pEqn.H         | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/applications/solvers/heatTransfer/buoyantPimpleFoam/pEqn.H b/applications/solvers/heatTransfer/buoyantPimpleFoam/pEqn.H
index ddfdc26ce9..7fbe21906f 100644
--- a/applications/solvers/heatTransfer/buoyantPimpleFoam/pEqn.H
+++ b/applications/solvers/heatTransfer/buoyantPimpleFoam/pEqn.H
@@ -93,7 +93,15 @@ if (pimple.simpleRho())
     rho = thermo.rho();
 }
 
+// Correct rhoUf if the mesh is moving
+fvc::correctRhoUf(rhoUf, rho, U, phi);
+
 if (thermo.dpdt())
 {
     dpdt = fvc::ddt(p);
+
+    if (mesh.moving())
+    {
+        dpdt -= fvc::div(fvc::meshPhi(rho, U), p);
+    }
 }