Learning Forum

[Rob]

Thanks Nick. I know you know what you're doing, but a comment for the OP to think about.  For a good mesh you must also consider that the cell resolution and growth are suitable for flow separation. A pure hex mesh in the above may be overly refined in the far field if you resolve the separation or too coarse in the separation region if you mesh for the far field. 

Or look at Fluent Meshing and use polyhedral elements. Most of the benefits of hex with most of the benefits of tet mesh. Having historically decomposed for pure block hex because I had to I'm far more likely to take the "easy" option now I can.