The material is Air and it is @ 25 degree celsuis so I used air density at this temperature.nI used the same method in Subsonic Jet in Inviscid & Viscous Environments courses. ofcourse changing air density and nozzle parameters. I am into using known output nozzle so I can compare the Nozzle Behaviour since I already do not have enough parameters on the Nozzle itself.nI just want it to know if the approach is correct or not ? and if that is a correct enough to figure out this nozzle behaviournn