A convergingdiverging nozzle operating at steady state has

Chapter 9, Problem 9.127

(choose chapter or problem)

A converging–diverging nozzle operating at steady state has a throat area of \(3 \mathrm{~cm}^{2}\) and an exit area of \(3 \mathrm{~cm}^{2}\). Air as an ideal gas with k = 1.4 enters the nozzle at 8 bar, 400 K, and a Mach number of 0.2, and flows isentropically throughout. If the nozzle is choked, and the diverging portion acts as a supersonic nozzle, determine the mass flow rate, in kg/s, and the Mach number, pressure, in bar, and temperature, in K, at the exit. Repeat if the diverging portion acts as a supersonic diffuser. In each analysis use data from Table 9.2 as needed.