矢量喷流下平尾偏转对飞机气动性能的影响

王延奎; 邓学蓥; 张祖庚

矢量喷流下平尾偏转对飞机气动性能的影响

1.
北京航空航天大学飞行器设计与应用力学系
2. 沈阳空气动力研究所

详细信息

作者简介:
王延奎(1967-),男,山东青州人,副教授,100083,北京.

中图分类号: V 211
计量
- 文章访问数: 2046
- HTML全文浏览量: 183
- PDF下载量: 4
- 被引次数: 0
出版历程
- 收稿日期: 2002-12-12
- 网络出版日期: 2003-02-28

Experimental Investigation on Effect of Horizontal Tail Deflectionon Aerodynamic Characteristics of Aircraft under Vectoring Jet

Wang Yankui¹,
Deng Xueying¹,

1.
Dept.of Flight Vehicle Design and Applied Mechanics, Beijing University of Aeronautics and Astronautics
2. Shenyang Aerodynamic Research Institute

摘要

摘要: 通过系列参数试验,研究有、无矢量喷流作用下飞机平尾偏转对飞机气动特性、操纵特性以及飞机绕流/矢量喷流之间干扰特性的影响.实验结果表明:在亚音速中小迎角下,有、无矢量喷流时平尾偏转并不影响飞机的纵向静稳定性,只是改变飞机的零升力矩系数m_z0和零升力迎角α₀,但平尾偏转可以较大幅度地改善前体机翼的绕流形态,减缓机翼涡及边条涡的破裂.此外当飞机处于失速状态时,矢量喷流对于涡破裂失速流动表现出强烈的干扰作用,对飞机的气动特性产生了较大的影响,其干扰区域不仅局限于飞机后体,而且还延伸至前机体,该有利气动干扰量可以达到飞机气动力的10%以上.
- 气动特性 /
- 水平尾翼 /
- 喷流干扰 /
- 气动效应 /
- 气动干扰
Abstract: Thrust vectoring is one of the advanced technologies in the design of 4th generation fighters to provide high maneuverability and agility. The effect of horizontal tail deflection on aerodynamic characteristics of aircraft with or without vectoring jet was investigated experimentally in a FL-1wind tunnel, as a function of testing parameters such as ,δ_j,α,Ma. Attention was focused on the influence of vectoring jet and the interaction between the vectoring jet and the mainflows around the forebody and afterbody of a modern fighter. It was found that (1) the deflection of the horizontal-tail doesn't affect the static stability of the aircraft with or without vectoring jet except the change of m_z0 and α₀. (2) Whereas the flow patterns over the wing can be changed greatly, improving the vortices flows and aerodynamic characteristics of the aircraft via the deflection of the horizontal-tail. (3) In addition, vectoring jet can influence the vortex burst flow at high attack angle greatly on the afterbody or extending to the foreboy with 10% increment of the lift.
- aerodynamic characteristics /
- horizontal tails /
- jet interference /
- aerodynamic effect /
- aerodynamic interference

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参考文献(1)

[1] Mace J,Nyberg G. Fighter airframe/propulsion integration－A McDonnell aircraft perspective .AIAA92~3333, 1992 [2] Powers S A, Robinson M R. Fighter airframe/propulsion integration－A Rockwell perspective . AIAA92~3334, 1992 [3] Mishler R, Wilkinson T. Emerging airframe/propulsion integration technologies at general electric . AIAA92~3335, 1992 [4] Liston G W, Small L L. Fighter airframe/propulsion integration－A wright laboratory perspective . AIAA92~3337, 1992 [5] Deng Xueying, Wang Yankui. An experimental study of interactive behavior between vectoring jet and main flows . AIAA98~0422, 1998

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