adapted angle for medial axis determination

applications/utilities/mesh/generation/snappyHexMesh/snappyHexMeshDict

@@ -274,7 +274,7 @@ addLayersControls
     maxThicknessToMedialRatio 0.3;
 
     // Angle used to pick up medial axis points
-    minMedianAxisAngle 130;
+    minMedianAxisAngle 90;
 
     // Create buffer region for new layer terminations
     nBufferCellsNoExtrude 0;