Well, I use HEX parametric for Internal CFD.
The project (I shared with you and Ric) is https://www.simscale.com/workbench/?pid=6414850718207970462&mi=spec%3Add5e8f5e-7f49-42ad-a61a-7cf083178f8e%2Cservice%3ASIMULATION%2Cstrategy%3A56
Simulation: CylinderSlice_HEX+MRF
Cheers,
Retsam