From 49c69872e5830bf93c2fcc665c3d89ac8c041781 Mon Sep 17 00:00:00 2001
From: Henry Weller <http://cfd.direct>
Date: Sat, 26 Aug 2023 10:07:02 +0100
Subject: [PATCH] externalTemperatureFvPatchScalarField: Changed fixesValue()
 to true

With the change the boundary temperature is updated only via the evaluate call
rather than derived from the corresponding energy solution.  This has proved
more stable and convergent for the wallBoiling cases.
---
 .../externalTemperatureFvPatchScalarField.H                 | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/src/ThermophysicalTransportModels/coupledThermophysicalTransportModels/externalTemperature/externalTemperatureFvPatchScalarField.H b/src/ThermophysicalTransportModels/coupledThermophysicalTransportModels/externalTemperature/externalTemperatureFvPatchScalarField.H
index dfff8b806f..eb6f8081a1 100644
--- a/src/ThermophysicalTransportModels/coupledThermophysicalTransportModels/externalTemperature/externalTemperatureFvPatchScalarField.H
+++ b/src/ThermophysicalTransportModels/coupledThermophysicalTransportModels/externalTemperature/externalTemperatureFvPatchScalarField.H
@@ -240,10 +240,12 @@ public:
 
         // Access
 
-            //- Allow manipulation of the boundary values
+            //- Disallow manipulation of the boundary values
+            //  The boundary temperature is evaluated only by
+            //  this boundary condition
             virtual bool fixesValue() const
             {
-                return false;
+                return true;
             }