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1.      A converging-diverging nozzle is designed assuming steady isentropic flow. Air enters the nozzle at 427°C and...

1.      A converging-diverging nozzle is designed assuming steady isentropic flow. Air enters the nozzle at 427°C and 1000 kPa with negligible velocity. The exit Mach number is 2 and throat area is 20 cm2. Determine:

a.      The throat velocity

b.      The mass flow rate

c.      The exit area

2.      The nozzle now has an exit area of 4 cm2. Air enters the nozzle with a total pressure of 1200 kPa, and a total temperature of 127oC. Determine the mass flow rate for back pressure of :

d.     900 kPa

e.      634 kPa

f.      400 kPa

Engineering   Mechanical-Engineering   
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