I am trying to link mesh two faces within a channel. The vertical edges of the two faces have concentrated nodes towards the edge and the horizontal edges have equally spaced nodes. when i link the meshes, the vertical and horizontal node spacings switch on one of the faces. Can anybody explain why this is happening.

Thanks in advance

Sorry i forgot to mention, i am linking the faces for periodic boundary conditions and have unchecked the reverse orientation option

The direction of the orientation may be wrong when linking your face. You should watch the arrows when you're selecting the faces to determine if you need to use the reverse orientation or not. Or, just try it with the reverse orientation option checked and see if that's better.

Hope this helps, Jason

Thanks for your advice, the arrows are all orientated correctly, i have gona ahead and used reverse orientation as its the only way i can get the periodic boundaries to work