Air enters a converging-diverging nozzle at 700 kPA, 240 K, and Ma = 0.3. The inflow nozzle area is 13 cm2 and the outflow nozzle area is 8 cm2. Use k = 1.4, R = 0.28 kJ/kg*K and Cp = 1.005 kJ/kg*K for air as an ideal gas.
a. Determine the inflow velocity in m/s
b. What back pressure will produce supersonic outflow?