Experimental study on lift enhancement of supercritical airfoil in subsonic by Gurney flap

被引：0
|
作者：
Zhang, Pan-Feng [1 ]
Chen, Ying-Chun [1 ,2 ]
Zuo, Lin-Xuan [1 ]
Wang, Jin-Jun [1 ]
机构：
[1] Institute of Fluid Mechanics, Beijing University of Aeronautics and Astronautics, Beijing 100191, China
[2] Shanghai Aircraft Design and Research Institute, Commercial Aircraft Corporation of China, Ltd., Shanghai 200232, China
来源：
Shiyan Liuti Lixue/Journal of Experiments in Fluid Mechanics | 2010年 / 24卷 / 04期
关键词：
Lift drag ratio - Wind tunnels - Drag - Lift;
D O I：
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学科分类号：
摘要：
The effect of Gurney flap on the aerodynamic characteristics of a subsonic supercritical airfoil was investigated by force measurements in a two dimensional wind tunnel. The results indicate that the Gurney flap can increase the lift and nose down pitching moment of the supercritical airfoil in subsonic. The optimal lift to drag ratio is achieved with a Gurney flap height 0.5% of the airfoil chord length. Compared with the symmetrical airfoil NACA 0012, the lift increment of the supercritical airfoil induced by Gurney flap is larger, but the pitching down moment increment is in the opposite way.
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页码：17 / 20
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