Is mesh.sf() points from owner cell to neighbor cell?
 

Hi all,

I am just wondering if mesh.Sf() points from the owner cell to the neighbor cell of the internal face. Also, is the cell label of the owner necessarily larger than that of the neighbor? Or the only info we know about mesh.Sf() is that it points from a smaller label of cell to a larger one? Any hints about the direction of mesh.Sf()?

Thanks in advance.