Question

The coefficient of pressure at stagnation point is ___________

(a) 0

(b) 0.5

(c) 1

(d) 2

I have been asked this question by my school teacher while I was bunking the class.

I need to ask this question from Bernoulli’s Equation in portion Inviscid & Incompressible Flow of Aerodynamics

Answer 1

Right option is (c) 1

Easiest explanation: The coefficient of pressure is the dimensional less quantity and it describes the relative pressure at each and every point in a flow field. At stagnation point, its value is maximum and it can change from point to point in a flow field.