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For compressible flow, the value of Cp at stagnation point is __________

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in Aerodynamics by (773k points)
For compressible flow, the value of Cp at stagnation point is __________

(a) 0

(b) negative

(c) infinity

(d) greater than 1

The question was posed to me in an online interview.

Origin of the question is Pressure Coefficient in division Inviscid & Incompressible Flow of Aerodynamics

1 Answer

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Best answer
Correct option is (d) greater than 1

The explanation is: In the case of compressible flow, the value of velocity at a stagnation point never equals to 0. The pressure and velocity differ from one point to another. Hence, the Cp value is always greater than 1.

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