Question

The Kutta condition is not satisfied at the trailing edge where θ=π in transformed coordinates for a symmetrical airfoil.

(a) True

(b) False

The question was asked in a job interview.

I would like to ask this question from The Symmetric Airfoil in division Incompressible Flow over Airfoils of Aerodynamics

Answer 1

The correct answer is (b) False

To explain I would say: Directly putting θ=π gives an indeterminate form (γ(π)=\(\frac {0}{0}\)), but using L’Hospital’s rule in the solution for γ(θ) gives a finite value of zero. Thus, the Kutta condition is satisfied.