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Typically, diffuser length is about eight times the diameter for supersonic application.(a) True(b) FalseThis question was addressed to me in an interview for internship.This interesting question is from Propulsion topic in chapter Propulsion and Fuel System Integration of Aircraft Design

Answer»

The correct answer is (a) True

Best explanation: Diffuser length depends upon the application. Theoretically for supersonic applications, diffuser length should be 8 times the diameter. This is to OPERATE at maximum efficiency. We can use LONGER than diameter as well. However, this will INCREASE DRAG and WEIGHT as well.



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