Ansys Learning Forum Forums Discuss Simulation Fluids Can you tell me the reason why my residual for truncated nozzle analysis is not converging? Reply To: Can you tell me the reason why my residual for truncated nozzle analysis is not converging?

Rob
Forum Moderator
I'd focus on a good hex mesh and be less worried about it being structured. That way you can resolve the flow.
As you're using all pressure boundaries you also want to read up on the Patch function to give the solver a better starting point: standard and hybrid initialisation may not be enough.