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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

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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