September 10, 2024 at 8:44 am
S.Shrestha-4
Subscriber

Yes, the nozzle is a conveging-diverging nozzle. I am expecting mach to be 1 at throat. My Inlet condition is subsonic and pressure inlet with pressure ~ 1 bar and pressure outlet=30 Pa. Transient simulation is converging at each time step. But it results in Mach at inlet around 1.44 while at throat mach is around 0.5 which is very wrong. 

Could you suggest what might be wrong here?

Thanks!

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