From 09313fa7ce79faefa1f65546b68c06ed8a0a73d5 Mon Sep 17 00:00:00 2001
From: mattijs <mattijs>
Date: Fri, 20 Sep 2013 17:32:26 +0100
Subject: [PATCH] BUG: snappyHexMesh: detect gaps

---
 .../meshRefinement/meshRefinementRefine.C            | 12 +++++++++++-
 1 file changed, 11 insertions(+), 1 deletion(-)

diff --git a/src/mesh/autoMesh/autoHexMesh/meshRefinement/meshRefinementRefine.C b/src/mesh/autoMesh/autoHexMesh/meshRefinement/meshRefinementRefine.C
index 99597db78d..db515c0bdc 100644
--- a/src/mesh/autoMesh/autoHexMesh/meshRefinement/meshRefinementRefine.C
+++ b/src/mesh/autoMesh/autoHexMesh/meshRefinement/meshRefinementRefine.C
@@ -1246,7 +1246,17 @@ bool Foam::meshRefinement::isGap
 
         if (avg != vector::zero)
         {
-            return true;
+            avg /= mag(avg);
+
+            // Check normal distance of intersection locations
+            if (mag(avg&d) > mergeDistance())
+            {
+                return true;
+            }
+            else
+            {
+                return  false;
+            }
         }
         else
         {