Generation of boundary layer waves by the interaction of free-stream long waves with a wavy boundary

The goal of this talk will be to expose an audience of experts in atmospheric and oceanic modeling to certain concepts, such as localized/distributed receptivity and the asymptotic triple-deck structure. These topics have traditional been used in the aerospace community, which is where they originated from. The hope is that by exposing the ideas behind these techniques and giving some canonical examples of where they are used in aerospace, that new areas of application to atmospheres and oceans may be found.

In this talk I will summarize the development of a theoretical framework for the generation of boundary-layer instability waves due to the interaction of free-stream long-wave disturbances with distributed wall (boundary) waviness. The mechanism involves a near resonance in the vicinity of the lower-branch neutral stability point, and thus appears to be a very efficient generator of boundary-layer instability waves. Up to now these techniques have been used primarily on airfoils and other bodies of practical interest with the long-wave free-stream disturbance being provided by acoustic waves.