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Consider a flow with 0.5M. Now, as area decreases, velocity of the flow inside convergent section _____________

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Consider a flow with 0.5M. Now, as area decreases, velocity of the flow inside convergent section _____________

(a) increases

(b) decreases

(c) reduces by half always

(d) velocity is independent of area

I had been asked this question in a national level competition.

The query is from Propulsion in division Propulsion and Fuel System Integration of Aircraft Design

1 Answer

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Best answer
Correct option is (a) increases

Easy explanation: Given, Mach number = 0.5. The flow is in subsonic speed region.

For subsonic speed, as area decreases the flow velocity will increase for convergent nozzle.

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