The Effect of Stores on Cavity Acoustics
Document Type
Conference Proceeding
Publication Date
6-27-2022
Abstract
Repeatable store separation inside of weapons bays has become a prominent concern in the United States Air Force (USAF) as more modern fighters are built with internal cavities for weapon carriage and employment. The purpose of this paper is to observe the effect of stores placed inside weapons bay and their effect on the cavity acoustics predicted by Rossiter compared to an empty cavity using the Department of Defense computational fluid dynamics (CFD) code Kestrel. A simple store geometry is used as a surrogate for munitions relevant to the USAF. The simulations for both cases used standard day conditions at M∞ = 0.95 at 20,000 ft. The store in the weapons bay shifted the first three Rossiter tones from the empty weapons bay and also from the predicted Rossiter values of an empty cavity. Future work will increase the amount of stores in the cavity to observe the effect of increasing the volume ratio of store to empty cavity.
Source Publication
AIAA AVIATION 2022 Forum
Recommended Citation
Amour, A. T., Crowe, D. S., & Jolly, B. A. (2022, June 27). The Effect of Stores on Cavity Acoustics. AIAA AVIATION 2022 Forum. AIAA AVIATION 2022 Forum, Chicago, IL & Virtual. https://doi.org/10.2514/6.2022-3449
Comments
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Conference Special Session: Cavity-Released Store Separation