VARIOUS SOURCES OF WING ROCK

被引：20
作者：
ERICSSON, LE
机构：
[1] Lockheed Missiles and Space Company, Inc., Sunnyvale, CA
来源：
JOURNAL OF AIRCRAFT | 1990年 / 27卷 / 06期
关键词：
D O I：
10.2514/3.25309
中图分类号：
V [航空、航天];
学科分类号：
08 ; 0825 ;
摘要：
Limit cycle oscillations in roll of advanced aircraft can result from three different fluid mechanical flow processes. The so-called slender wing rock is caused by asymmetric vortex shedding from highly swept wing leading edges. A completely different flow mechanism causes wing rock for aircraft with moderately swept leading edges. In this case, the causative mechanism is dynamic airfoil stall. Finally, if the aircraft has a slender forebody, the rocking motion can be generated by asymmetric body vortices from the nose, which interact with a nonaxisymmetric aft body, e.g., due to the presence of wing or tail surfaces. This paper describes the nonsteady fluid dynamic processes generating the different types of wing rock. © 1990 by L. E. Ericsson.
引用
收藏
页码：488 / 494
页数：7
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