Index: meshes/numMesh/mesh.py
===================================================================
--- meshes/numMesh/mesh.py	(revision 3652)
+++ meshes/numMesh/mesh.py	(working copy)
@@ -180,6 +184,7 @@
         _CommonMesh._calcTopology(self)
 
         ## calculate new geometry
+        self._calcFaceCellToCellNormals()
         self._calcFaceToCellDistanceRatio()
         self._calcCellToCellDistances()
         self._calcScaledGeometry()