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http://dx.doi.org/10.5139/JKSAS.2002.30.7.105

An Investigation of the Vortical Flow Characteristics over a Yawed Delta Wing with LEX at High Incidence  

Lee, Ki-Young (공군사관학교 기계공학과)
Sohn, Myong-Hwan (공군사관학교 항공우주공학과)
Publication Information
Journal of the Korean Society for Aeronautical & Space Sciences / v.30, no.7, 2002 , pp. 105-112 More about this Journal
Abstract
An experimental study of the vortical flow characteristics around a yawed delta wing with the leading edge extension at high incidence angle is undertaken by upper surface pressure measurements. A special emphasis has been put on analyzing the basic physics of vortical flows, concerning the effects of incidence and sideslip angle on the aerodynamic characteristics of the wing, especially under high angle of attack. The experimental data has been dearly demonstrated the beneficial effect of the LEX vortex on the wing vortex. It leads to an essential stabilization of the wing vortex against its breakdown until at much higher incidence angle under small sideslip. An interesting flow feature is occurrence of the rolling moment reversal at a certain range of angle of attack and sideslip angle.
Keywords
Leading Edge Extension(LEX); Yawed Delta Wing; Vortex F1ow; Vortex Breakdown; Sideslip Angle;
Citations & Related Records
Times Cited By KSCI : 5  (Citation Analysis)
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