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Ansys Learning Forum › Forums › Discuss Simulation › Fluids › mach at inlet higher than at throat nozzle › Reply To: mach at inlet higher than at throat nozzle

September 10, 2024 at 9:36 am
Essence
Ansys Employee

I see the throat area too small. Is the area ratio correct? If you need Ma = 3 at the outlet, then according to the isentropic relations, P/Po = 0.02722, A/A = 4.234 and P/P* = 0.0515. But you have applied P/Po = 30/10^5 = 0.0003.