固体火箭技术Issue(2)：161-166,6.DOI:10.7673/j.issn.1006-2793.2014.02.004
导轨排气孔对发射箱内流场影响的计算分析
Calculation and analysis about the impact of guide vents on the flow field inside the launching canister
牛钰森 1姜毅 1史少岩1
作者信息
- 1. 北京理工大学 宇航学院，北京 100081
- 折叠
摘要
Abstract
To analyze the impact of guide vents on the flow field inside the launching canister,five kinds of working conditions were calculated.These working conditions were built for a kind of single draw-bar cylinder ejection device.The number of guide vents in each working condition is different.The force curves of missile in pitching direction were obtained,and pitching moment curves at back missile block were also plotted.The spreading process of compressional wave in the launching canister which is caused by the high pressure gas was studied,and the impact of this compressional wave on the axial force of missile was analyzed.The results show that the pitching moment of missile can be significantly reduced by plugging the guide vents,but at the same time the intensity of compressional wave can be enhanced,and the axial force of missile increases.关键词
弹射/提拉杆/气缸/燃气/排气孔Key words
ejection/draw-bar/cylinder/gas/guide vent分类
航空航天引用本文复制引用
牛钰森,姜毅,史少岩..导轨排气孔对发射箱内流场影响的计算分析[J].固体火箭技术,2014,(2):161-166,6.
