Movement of aerodynamic centre
Hi just having a bit of trouble understanding this concept.
So the aerodynamic centre of an aircraft is the point at which the pitching moment does not change with a change in angle of attack. Similar in nature to the centre of gravity. I can understand this for incompressible, inviscid flow but what about when the effects of friction and compressibility are considered? Wouldn't the moment change at high angles of attack due to flow seperation affecting the pressure distribution over the wing?
Cheers,
J