Unsteady Weapon Bay Aerodynamics - Urban Legend or Flight Clearance Nightmare

Correlation of Weapon Bay Resonance and Store Unsteady Force and Moment Loading

“…Due to the demonstrated success and repeatability of this methodology for externally-carried stores, it has long been accepted that the release of an externally-carried store can be considered a steady-state problem. 2 This assumption does not necessarily apply, however, for the release of internally-carried stores. For aircraft with weapon bays, the interaction of the shear layer and its reattachment at the aft wall of the cavity produces acoustic waves which lead to highly turbulent flow in the cavity and shear layer.…”