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Experimental Study on Flow Control Characteristics of Synthetic Jets over a Blended Wing Body Configuration

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Authors
Lee, Byunghyun; Kim, Minhee; Cho, Taewhan; Lim, Seol; Jung, Kyoung Jin; Kim, Chongam
Issue Date
2013-11
Publisher
APISAT
Citation
The 2013 Asia-Pacific International Symposium on Aerospace Technology, pp. 1-8
Keywords
공학synthetic jetflow separation controlblended wing body
Description
Nov. 20-22, 2013, Sunport Hall Takamatsu, Takamatsu, JAPAN
Abstract
This paper presents experimental investigations on the characteristics of synthetic jets over blended wing body configuration. Flow control experiments were performed by using piezoelectrically driven synthetic jet under various flow conditions. In the first step, baseline characteristics of blended wing body configuration were analyzed when synthetic jet was off. Pressure distribution and separated-flow region on the wing surface were examined by changing the angle of
attack. Flow control experiments were carried out by synthetic jet to demonstrate the flow control performance in the post-stall regime. Comparative studies were also conducted for a stalled condition. Aerodynamic coefficient was examined by changing synthetic jet operating condition, such as jet oscillation frequency and jet module locations. Based on various comparisons, it was observed that synthetic jet operating conditions have significantly influence on the development of leading-edge vorticies, that is to say, flow control performance of synthetic jet.
Language
English
URI
https://hdl.handle.net/10371/90928
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College of Engineering/Engineering Practice School (공과대학/대학원)Dept. of Mechanical Aerospace Engineering (기계항공공학부)Others_기계항공공학부
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