EXTERNALweapons' carriagescanberesponsibleforasmuchas 30% of the total vehicle drag
and lead to prohibitive increases in radar signatures of current generation combat aircraft [1].
Motivated by these considerations, recent military aircraft programs have incorporated
internal weapons' carriage systems. However, an internal aircraft weapons bay, when
exposed to freestream flow, experiences an intense aeroacoustic environment in and
around the bay [2] with unsteady pressure fluctuations as high as 160 to 180 dB. Similar …

We present Large Eddy Simulations based analysis of the suppression of dynamic loads on
the walls of a complex non-rectangular cavity using leading edge mass blowing. The unique
aspect of the concepts discussed here is the very low mass flow rates used to achieve
significant suppression. The simulation results are used to gain insight into the mechanism
governing the effectiveness of these jets. The jets are applied to a deep (L/D= 5.6) cavity at
supersonic conditions of Mach 1.5. The simulation results show excellent agreement with …