弹道学报2025，Vol.37Issue(1)：68-76,9.DOI:10.12115/ddxb.2023.11003
低速状态下鸭式布局导弹的下洗现象
Downwash Phenomenon of Canard-layout Missle at Low Speed
母雪鹏 1陈少松 1魏恺 1徐一航2
作者信息
- 1. 南京理工大学 能源与动力工程学院,江苏 南京 210094
- 2. 江南机电设计研究所,贵州 贵阳 550000
- 折叠
摘要
Abstract
The downwash phenomenon of canard missile at low speed was studied by numerical calculation method and PIV experiment.The aerodynamic parameters and flow field of canard-shaped missile were calculated and analyzed under the condition of free-stream Mach number of 0.03(10 m/s)and 0.1(34 m/s).The results show that the downwash phenomenon of the canard missile is mainly affected by the shedding vortex of the canard with the downwash flow on the downstream flow field at low speed.A symmetrical effect is generated without the rudder deflection angle.In addition,the influence of the downwash phenomenon on the roll characteristics of the whole missile was explored when the canard was rolled(horizontal canard differential deflection).It was found that the roll reverse effect occurred.The main reason is that,the shedding vortex at the trailing edge of the horizontal canard rudder is asymmetric when the horizontal canard rudder is differentially deflected,so the downstream flow field is also asymmetric.That is,the shedding vortex of the canard rudder will interact with the vortex attached to the missile body and the tail,so that the area of the low-pressure zone above the two horizontal tails is asymmetric,and the normal force provided is not equal,and finally the tail produces a rolling moment opposite to the canard rudder control direction.With the increase of the attack angle,the reverse rolling moment generated by the tail fin is gradually greater than the forward rolling moment provided by the canard,leading to the rolling effect.关键词
导弹/鸭式布局/低速/下洗/滚转反效/粒子图像测速实验Key words
missile/canard layout/low speed/downwash/rolling reverse/PIV experment分类
武器工业引用本文复制引用
母雪鹏,陈少松,魏恺,徐一航..低速状态下鸭式布局导弹的下洗现象[J].弹道学报,2025,37(1):68-76,9.
