Question

Bernoulli’s equation can be directly applied to viscous flow.

(a) True

(b) False

This question was posed to me in an international level competition.

The above asked question is from Bernoulli’s Equation topic in portion Inviscid & Incompressible Flow of Aerodynamics

Answer 1

The correct choice is (b) False

For explanation I would say: No, the Bernoulli’s equation cannot be directly applied to viscous flow because in viscous flow, the motion of the fluid particle is constant. Hence, we need to convert the viscous flow into Navier-stoke equation and then Bernoulli’s equation can be applied to it.