From 8ac0548c6a40aaed05abbc7a1038598bc71d7340 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Reg=C5=91=20Simon?= <>
Date: Mon, 1 Nov 2021 12:53:38 +0000
Subject: [PATCH] BUG: solidificationMeltingSource: allow topology changes
 (Fixes #2026)

---
 .../solidificationMeltingSource.C                          | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/src/fvOptions/sources/derived/solidificationMeltingSource/solidificationMeltingSource.C b/src/fvOptions/sources/derived/solidificationMeltingSource/solidificationMeltingSource.C
index 0e3e4d9104..d8fff9fb1d 100644
--- a/src/fvOptions/sources/derived/solidificationMeltingSource/solidificationMeltingSource.C
+++ b/src/fvOptions/sources/derived/solidificationMeltingSource/solidificationMeltingSource.C
@@ -6,7 +6,7 @@
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
     Copyright (C) 2014-2017 OpenFOAM Foundation
-    Copyright (C) 2018-2020 OpenCFD Ltd.
+    Copyright (C) 2018-2021 OpenCFD Ltd.
 -------------------------------------------------------------------------------
 License
     This file is part of OpenFOAM.
@@ -129,6 +129,11 @@ void Foam::fv::solidificationMeltingSource::update(const volScalarField& Cp)
         Info<< type() << ": " << name_ << " - updating phase indicator" << endl;
     }
 
+    if (mesh_.topoChanging())
+    {
+        deltaT_.resize(cells_.size());
+    }
+
     // update old time alpha1 field
     alpha1_.oldTime();