MCQ : Compressible flow

MCQ : Compressible flow

Nitrogen is escaping from a pressurized bottle (internal temperature 300 K, internal pressure 650 kPa) through an open valve that happens to be shaped like a converging-diverging nozzle, with an area ratio of 10 on the diverging side of the throat. What area ratio at the shock is required to get the exit pressure from the nozzle to equal atmospheric pressure (100 kPa)? (It’s a fairly complex calculation, so your answer may differ by 1 or 2 in the least significant figure shown.) a)1.53 b)8.32 c)8.67 d)9.62

 

In: Mechanical Engineering

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