Question

The boundary layer is formed at the _____________

(a) boundary of an object

(b) surface of an object

(c) at a point on an object

(d) edges of an object

The question was asked in an interview for internship.

My enquiry is from Circulation topic in portion Aerodynamics – Fundamental Principles and Equations of Aerodynamics

Answer 1

Correct choice is (a) boundary of an object

Best explanation: The boundary layer is formed at the boundary of an object. The boundary layer divides the flow into two parts- Viscous and inviscid. The flow inside the boundary layer is highly viscous whereas, the flow outside the boundary is inviscid flow.