1. Air enters a converging-diverging nozzle with a total pressure of 1100 kPa and a total temperature...

1. Air enters a converging-diverging nozzle with a total pressure of 1100 kPa and a total temperature of 127°C. The exit area to throat area ratio is 1.8. The throat area is 5 cm². The velocity at the throat is sonic and the diverging section acts as a nozzle. Determine the following:

a. The mass flow rate

b. The exit pressure and temperature

c. The exit Mach number

d. The exit velocity

2. The converging-diverging nozzle now has a throat area of 100 mm² and an exit area of 160 mm². The inlet flow is helium at a total pressure of 1 MPa and total temperature of 102°C. Determine the back pressure that will give sonic condition at the throat, but subsonic everywhere else.

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Expert Solution

samet mamat answered 1 year ago

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