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http://dx.doi.org/10.5139/JKSAS.2002.30.3.017

Papers : An Experimental Study of the Aerodynamic Characteristics Using the Wing - tip Jet Blowing at the Aircraft  

Hong, Hyeon-Ui
Jeong, Un-Gap
Kim, Beom-Su
Publication Information
Journal of the Korean Society for Aeronautical & Space Sciences / v.30, no.3, 2002 , pp. 17-26 More about this Journal
Abstract
The pressure distributions on a semi-span wing 1/12 scale mode and sic component aerodynamic forces and moments on a complete 1/16 scale advanced trainer model were measured. To reduce wing-tip vortex strength, 3 wing-tip jet slot shaped(forward $35{^{\circ}C}$ direction, straigt direction, backward $35{^{\circ}C}$ direction) and 3 blowing coefficents (0.004, 0.009, 0.017) were considered. From experiment results, the case of straight direction and blowing coefficent of 0.017 was the best effective in the reduction of drag and in increase of lift-drag ratio and A rate of drag decrease and a rate of lift-drag ratio increase were of most effective on angle of attack 8 degree.
Keywords
Wing-tip jet blowing; Aerodynamic characteristics; Blowing momntum coefficient; Pressure coefficient;
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