Control of leading-edge separation from an airfoil by internal acoustic excitation and self-induced resonances

摘要

A significant problem of the operation of an airfoil is the leading-edge separation occurring at high angles of attack which results in formatioon of a large-scale separation region,so that the lift cannot increase further with the angle of attack.It is a task to find control mechanisms which are as effective as possible to attain a higher critical angle of incidence.