Question

Consider an incompressible flow. If static pressure increases then, the local freestream velocity __________

(a) decreases

(b) increase

(c) remains same

(d) insufficient data

I had been asked this question during a job interview.

Query is from Aerodynamic Forces topic in portion Aerodynamics of Aircraft Design

Answer 1

Correct option is (a) decreases

To explain I would say: If static pressure is increased then the corresponding value of the dynamic pressure should decrease. Bernoulli’s has provided better understanding of pressure acting on the aircraft.