Question

The dynamic pressure is given by ______

(a) 0.5ρ*V^2

(b) ρ* V^2

(c) 3*V^2

(d) 5ρ* V^2

I had been asked this question in quiz.

This key question is from Bernoulli’s Equation topic in chapter Inviscid & Incompressible Flow of Aerodynamics

Answer 1

The correct option is (a) 0.5ρ*V^2

Explanation: The dynamic pressure is not actually a pressure. It simply justifies the decrease in pressure due to the increase in the velocity. It simply justifies that when the density is half and the velocity is squared, the pressure decreases.