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http://dx.doi.org/10.5139/IJASS.2007.8.2.098

Control of Delta-Wing Vortex by Apex Strake  

Sohn, Myong-Hwan (Department of Aerospace Engineering Korea Air Force Academy)
Chung, Hyoung-Seog (Department of Aerospace Engineering Korea Air Force Academy)
Publication Information
International Journal of Aeronautical and Space Sciences / v.8, no.2, 2007 , pp. 98-106 More about this Journal
Abstract
The vortex flow characteristics of a double-delta wing, which can change the incidence angle of its apex strake was investigated through the wing-surface pressure measurement and the particle image velocimetry(PIV) measurement of the wing-leeward flow region. The apex strake has sharp edges and can change its incidence angle with a hinge line at the 23% chord position measured from the apex of the main wing. The present study revealed that the incidence-angle change of the apex strake could greatly alter the vortex flow pattern around the double-delta wing and the wing-surface pressure distribution, which suggested that the apex strake could be used as an effective device for the active control of delta-wing vortex flow.
Keywords
delta-wing vortex; apex strake; flow control; PIV measurement; wing surface pressure
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
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