From d98d2c371adce6bf2224d9149c9ac4bf97d5ab5d Mon Sep 17 00:00:00 2001
From: Will Bainbridge <http://cfd.direct>
Date: Tue, 25 Jul 2023 09:00:57 +0100
Subject: [PATCH] MPLIC: Add an explicit error detailing incompatibility with
 NCC

Resolves bug report https://bugs.openfoam.org/view.php?id=3999
---
 src/twoPhaseModels/interfaceCompression/MPLIC/MPLIC.C | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/src/twoPhaseModels/interfaceCompression/MPLIC/MPLIC.C b/src/twoPhaseModels/interfaceCompression/MPLIC/MPLIC.C
index d7fc6c1e35..9e4ae8ac68 100644
--- a/src/twoPhaseModels/interfaceCompression/MPLIC/MPLIC.C
+++ b/src/twoPhaseModels/interfaceCompression/MPLIC/MPLIC.C
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     | Website:  https://openfoam.org
-    \\  /    A nd           | Copyright (C) 2020-2022 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2020-2023 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -187,6 +187,13 @@ Foam::tmp<Foam::surfaceScalarField> Foam::MPLIC::surfaceAlpha
         }
     }
 
+    if (!mesh.conformal())
+    {
+        FatalErrorInFunction
+            << "The " << type() << " scheme is not compatible with "
+            << "non-conformal meshes" << exit(FatalError);
+    }
+
     // Convert the alphaPhi spliced field into a surfaceScalarField
     tmp<surfaceScalarField> tslicedAlpha
     (