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http://dx.doi.org/10.5139/JKSAS.2004.32.5.010

Dynamic Stall Control with Droop Leading Edge and Gurney Flap  

Lee, Bo-Sung (서울대학교 기계항공공학부 대학원)
Yee, Kwan-Jung (한국항공우주연구원)
Joo, Wan-Don (서울대학교 기계항공공학부 대학원)
Lee, Dong-Ho (서울대학교 기계항공공학부)
Publication Information
Journal of the Korean Society for Aeronautical & Space Sciences / v.32, no.5, 2004 , pp. 10-17 More about this Journal
Abstract
To achieve the advanced forward flight performance of helicopter, the passive control methods for enhancement of the dynamic stall characteristics of rotor blades are studied. To enhance the dynamic stall characteristics of the rotor blades, it is essential to improve the lift performance and the pitching moment performance simultaneously with the control of the separation on the rotor blades. For this point of view, both the fixed droop leading edge and the Gurney flap which are simply realized are used for control of the dynamic stall in severe dynamic stall conditions. From this study, the combination of both passive control methods showed dramatic enhancement of lift and pitching moment performance in dynamic stall than previous research results.
Keywords
Dynamic Stall Control; Droop Leading Edge; Gurney Flap; Flow Control;
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