Question

The main motive behind redesigning standard airfoils to get the new airfoils was higher maximum lift coefficient and______

(a) Lesser drag

(b) Better shapes

(c) Handling flow separation effects

(d) Strength of material

I have been asked this question during an interview for a job.

Question is from Modern Low Speed Airfoils topic in division Incompressible Flow over Airfoils of Aerodynamics

Answer 1

Correct option is (c) Handling flow separation effects

The explanation is: The use of computers led to the design of better airfoils since it made possible to get the definitive properties of the airfoils. This had many advantages like a higher coefficient of lift and shape to tackle the flow separation effects at high angles of attack.