Reply To: temperature limited to 1 in 50 cells

[Rob]

Ortho quality is angle ratio based, and is (I think) covered along with some colour images in the Fluent Meshing documentation. Otherwise check in Meshing. It's OK to use on hex/tet elements but is really the only way to check poly cell quality. 

If you're hitting temperature limits check for mesh (as discussed) but also rate of change of volume. Which gas density model are you using?