超临界翼型Gurney襟翼增升实验研究

李亚臣; 王晋军; 樊建超; 张林

超临界翼型Gurney襟翼增升实验研究

1.
北京航空航天大学飞行器设计与应用力学系
2. 中国空气动力研究与发展中心

详细信息

作者简介:
李亚臣(1972-),男,黑龙江北安人,博士生,100083,北京.

中图分类号: V 21141
计量
- 文章访问数: 2029
- HTML全文浏览量: 48
- PDF下载量: 14
- 被引次数: 0
出版历程
- 收稿日期: 2002-03-11
- 网络出版日期: 2003-06-30

Experimental Investigation into Effects of Gurney Flaps on Supercritical Airfoil

1.
Dept. of Flight Vehicle Design and Applied Mechanics, Beijing University of Aeronautics and Astronautics
2. China Aerodynamic Research and Development Center

摘要

摘要: 在FL-21风洞中进行了高速情况下Gurney襟翼对超临界翼型增升实验研究.0.5%C、1.0%C、1.5%C和2.0%C高度的Gurney襟翼分别使翼型最大升力系数提高了6.0%、12.4%、21.7%和22.3%,其中,1.5%C高度的Gurney襟翼使翼型获得了33.2%的最大升阻比增量.其增升机理则是由于Gurney襟翼前表面压力增强,而其下游底部吸力增加,此压力梯度直接导致翼型总环量增加.
- 超临界机翼 /
- 增升装置 /
- 风洞试验 /
- Gurney襟翼
Abstract: An experimental study was performed on a supercritical airfoil in the FL-21 wind tunnel to investigate the lift-enhancement effects of the Gurney flaps at high speed conditions. The 0.5%C, 1.0%C, 1.5%C and 2.0%C height Gurney flap increased the maximum lift-coefficient by 6.0%, 12.4%, 21.7% and 22.3% separately, and the 1.5%C height Gurney flap increased the maximum lift-to-drag ratio by 33.2%. The mechanism of this increment in lift is that the pressure upstream of the Gurney flap was increased and the base suction downstream of it was increased also, and this difference in pressure led to an increment in circulation.
- supercritical wings /
- high lift devices /
- wind tunnel tests /
- Gurney flap

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参考文献(1)

[1] Liebeck R H. Design of subsonic airfoils for high lift[J]. Journal of Aircraft, 1978, 15(9):547~561 [2] Storms B L, Jang C S. Lift enhancement of an airfoil using a Gurney flap and vortex generators[J]. Journal of Aircraft, 1994, 31(3):542~547 [3] 李亚臣, 王晋军, 张攀峰. 平板/锯齿型Gurney襟翼对NACA0012翼型增升实验研究[J]. 航空学报, 2002,24(2):119~123 Li Yachen, Wang Jinjun, Zhang Panfeng. Experimental investigation oflift enhancement on a NACA0012 airfoil using plate/serrated Gurney flaps[J]. Acta Aeronautica et Astronautica Sinaca, 2002,24(2):119~123(in Chinese) [4] Li Yachen, Wang Jinjun, Zhang Panfeng. Effects of Gurney flaps on a NACA0012 airfoil[J]. Flow, Turbulence and Combustion, 2002,68(1):27~39 [5] Myose R, Papadakis M, Heron I. Gurney flap experiments on airfoils, wings, and reflection plane model[J]. Journal of Aircraft, 1998, 35(2):206~211 [6] Storms B L, Ross J C. Experimental study of lift-enhancing tabs on a two-element airfoil. AIAA Paper 94-1868,1994 [7] Li Yachen, Wang Jinjun, Tan G K, et al. Effects of Gurney flaps on the lift enhancement of a cropped non-slender delta wing[J]. Experiments in Fluids, 2002, 32(1):99~105 [8] 李亚臣, 王晋军. 三角翼Gurney襟翼增升实验研究[J]. 空气动力学学报,2002,20(4):388~393 Li Yachen, Wang Jinjun. Experimental investigation of Gurney flaps on the lift enhancement of a delta wing[J]. Acta Aerodynamica Sinaca, 2002,20(4):388~393(in Chinese)

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