空气动力学学报Issue(3)：296-301,6.DOI:10.7638/kqdlxxb-2015.0048
小展弦比飞翼布局新型嵌入面航向控制特性研究
Effect of the novel embedded control surfaces on direction control characteristic of low-aspect-ratio flying-wing configuration
单继祥 1黄勇 2苏继川 1李永红 1彭鑫1
作者信息
- 1. 中国空气动力研究与发展中心 高速空气动力研究所，四川 绵阳 621000
- 2. 中国工程物理研究院 总体工程研究所，四川 绵阳 621999
- 折叠
摘要
Abstract
The middle sweepback embedded control surfaces are designed on the upper and lower surfaces of a flying-wing,and the control characteristics and flow mechanism are analyzed by both experimental and simulated method.The results show that when the upper embedded control surfaces is opened,there is sufficient yawing moment generated mainly by the side force and drag of embedded control surfaces at small angle of attack.With the increasing of the angle of attack,the embedded control surfaces is under the influence of the leading edge vortex and the directional control ability decreases rapidly,even lapses at high angles of attack.Further more, the embedded control surfaces may have adverse effect on the roll moment because of moment coupling effect.On the other side,the lower embedded control surfaces can functionate as direc-tion control device at all attack angles.Using the lower and upper embedded control surfaces ra-tionaly according to the different angle of attack,it not only the directional control requirement can be guaranteed,but also the stealth performance insured.关键词
飞翼布局/小展弦比/中等后掠角嵌入面/航向控制/前缘涡/数值模拟Key words
flying-wing configuration/low-aspect-ratio/embedded control surfaces/heading control/leading edge vortex/numerical simulation分类
航空航天引用本文复制引用
单继祥,黄勇,苏继川,李永红,彭鑫..小展弦比飞翼布局新型嵌入面航向控制特性研究[J].空气动力学学报,2015,(3):296-301,6.
