Question

What happens to the linearized velocity potential equation for flow over high thickness – chord ratio?

(a) Becomes zero

(b) Becomes 1

(c) Is invalid

(d) Becomes infinity

I got this question in semester exam.

The query is from Linearized Velocity Potential Equation in division Linearized and Conical Flows of Aerodynamics

Answer 1

The correct choice is (c) Is invalid

For explanation I would say: The linearized velocity potential equation becomes invalid for flows at higher Mach number with limit tends to infinity. It is also not valid for flows over airfoil at higher angle of attack and high thickness to chard ratio.