| 摘要: |
| 对空间发动机系统关机过程进行了数值仿真分析，讨论了关机过程中系统管路内的水击现象，以及多推力室发动机系统工作状态、阀门响应特性等因素对水击现象的影响。 |
| 关键词: 液体推进剂火箭发动机 航天器推进 发动机关机 水冲击 |
| DOI： |
| 分类号:V434.23 |
| 基金项目: |
|
| THEORETICAL ANALYSES OF WATER HAMMERING IN SHUTTING SPACE ENGINE SYSTEM |
|
Li Qinwu1, Zhang Weihua1, Wang Zhenguo1, Li Junhui2
|
|
1.Deptof Aerospace Technology,National Univof Defence Technology,Changsha,430073;2.Beijing Instof Space System Engineering,Beijing,100076
|
| Abstract: |
| By the use of a numerical model simulating the transient process of a space engine system,the phenomenon of water hammering in shutting this engine system was studiedThe final results show that,because of differences of the number and the type of operating thrusters and the operating time of valves,the degree of water hammering in pipe line system varies greatly |
| Key words: Liquid propellant rocket engine Spacecraft propulsion Engine cutoff Water impingement |
