Reply To: Issue with Inlet Pressure in CFD Simulation of a Laval Nozzle

[SneOG]

I set the inlet boundary conditions to a pressure inlet with a gauge total pressure of 3,000,000 Pa and a supersonic/initial gauge pressure of 3,000,000 Pa.

I set the outlet boundary conditions to a pressure outlet with a gauge total pressure of 101,325 Pa.

I chose oxygen as the working fluid and set the density to ideal gas.

For the report, I looked at the static pressure contours and plotted an XY graph along the centerline of the nozzle. I expected to see a pressure of 3,000,000 Pa at the inlet, but the observed value was lower.

Is this enough information?

Thank you in advance.