Question

When the free-stream velocity is made one-third, the transition point moves downstream.

(a) The given statement is true or false?

(b) True

(c) False

This question was posed to me by my college director while I was bunking the class.

Question is taken from Turbulent Flow in chapter Incompressible Flow over Airfoils of Aerodynamics

Answer 1

Right answer is (a) The given statement is true or false?

For explanation I would say: The transition point is given as xcr=\(\frac {Re_{x_{cr}} μ_∞}{\rho_∞V_∞ }\). Thus, from the formula, we can see that as the velocity is decreased xcr increases i.e. the transition point moves away from the leading edge (or moves downstream).