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http://dx.doi.org/10.20910/JASE.2016.10.4.11

Aerodynamic Characteristics of a Variable Span Wing Flying Inside a Channel I (Effects of Wing Aspect Ratio and Guideway)  

Han, Cheolheui (Dept. of Aeronautical and Mechanical Design Engineering, Korea National University of Transportation)
Publication Information
Journal of Aerospace System Engineering / v.10, no.4, 2016 , pp. 11-16 More about this Journal
Abstract
In this paper, an experimental study on the aerodynamic characteristics of a variable span wing flying inside a channel guideway is accomplished using wind tunnel testing. A variable span wing with a NACA 0012 airfoil section was fabricated and actuated using a linear servo motor. The aerodynamic effects of 1) wing aspect ratio, 2) ground effect, and 3) the gap between the wingtip and the wing fence were investigated. It was found that both ground effect and wing fence gap increased lift. Also, the wing fence gap does not significantly affect drag. Therefore, it was found that a variable span mechanism can be used as an effective high lift device when flap use is limited.
Keywords
Ground Effect; Wind Tunnel Experiment; Variable-Span Wing; Nonplanar Ground; Wing-In-Ground Effect Vehicle;
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Times Cited By KSCI : 4  (Citation Analysis)
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