弹道学报Issue(4)：76-81,6.
燃气弹射发射筒内燃气空气二次燃烧现象研究
Study on Secondary Combustion of Jet-flow and Air Inner Tube of Gas Ej ection Launcher
摘要
Abstract
The missile launcher is subj ected to thermo-impact and ablation while secondary combustion of j et-flow and air in inner tube of gas ej ection launcher occurring.To study the secondary combustion with moving boundary inner tube,a three-order accurate MUSCL scheme was employed to solve 10-step and 9 species chemical reactions of H2/CO.The zone moving and dynamic laying method was adopted to simulate missile motion.The method was reliable by comparing with experimental results of free-j et flow impacting on plat.The effects of secondary combustion on j et field characteristic,motion law of internal traj ectory and cause for secondary combustion were studied.The results show that the secondary combustion not only affects the temperature distribution,but also the motion law of internal traj ectory.Intense chemical reaction of combustible jet-flow components with O2 in the tube results in the secondary combustion.The research provides theoretical foundations for the optimization design of gas ej ection launcher.关键词
内弹道/燃气弹射/二次燃烧/域动分层/数值模拟Key words
internal ballistics/gas ej ection/secondary combustion/zone moving and dynamic layering method/numerical simulation分类
军事科技引用本文复制引用
胡晓磊,乐贵高,李仁凤,马大为..燃气弹射发射筒内燃气空气二次燃烧现象研究[J].弹道学报,2014,(4):76-81,6.基金项目
国防基础科研项目 （）
