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Numerical Study on Supersonic Inlet Buzz Under Various Throttling Conditions and Fluid-Structure Interaction

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Authors
Hong, Wooram; Kim, Chongam
Issue Date
2011-06
Publisher
AIAA
Citation
41st AIAA Fluid Dynamics Conference and Exhibit Online Proceedings, 2011-3967, pp. 1-16.
Keywords
공학
Abstract
This paper presents numerical investigations on the buzz characteristics of a supersonic
inlet. By applying dynamic throttling conditions and using FSI (Fluid-Structure Interaction)
technique, we were able to match operating conditions close to the real cases. In order to
evaluate the effects of the dynamic throttling conditions and FSI, numerical simulations of a
supersonic inlet configuration were performed sequentially for the following three stages. At
first, the physical phenomena related to the inlet buzz such as shock-shock and shockboundary interactions were studied under static throttling condition. In the second stage, the
effect of the dynamic throttling ratio on the inlet buzz was examined. A dynamic throttling
condition is assumed that the inlet is initially in high frequency buzz condition, from which
throttling plug at the exit nozzle starts to move. Finally, the structural deformation effect
was figured out using FSI for the same throttling conditions. The results of these studies
reveal the detailed effects of the throttling ratio and the structural deformation on the buzz
characteristics
Language
English
URI
http://hdl.handle.net/10371/82424
DOI
https://doi.org/10.2514/6.2011-3967
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College of Engineering/Engineering Practice School (공과대학/대학원)Dept. of Mechanical Aerospace Engineering (기계항공공학부)Others_기계항공공학부
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