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The highest value of Cp is given at ________(a) end points(b) stagnation point(c) everywhere in the flow field(d) at boundariesI have been asked this question in an interview.My query is from Pressure Coefficient in section Inviscid & Incompressible Flow of Aerodynamics

Answer»

Correct CHOICE is (b) stagnation POINT

Explanation: At stagnation point, the value of velocity is 1 and therefore Cp = 1 – (V2/ V1)^2

GIVES the value of the coefficient of pressure as 1. This is true only for INCOMPRESSIBLE flow. Stagnation point gives the highest value of the coefficient of pressure.



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