空间发动机系统关机过程水击现象理论分析

推进技术 ›› 1998, Vol. 19 ›› Issue (3): 27-29.

空间发动机系统关机过程水击现象理论分析

黎勤武,张为华,王振国,李军辉

长沙国防科技大学航天技术系;长沙国防科技大学航天技术系;长沙国防科技大学航天技术系;北京宇航系统工程研究所

发布日期:2021-08-15

THEORETICAL ANALYSES OF WATER HAMMERING IN SHUTTING SPACE ENGINE SYSTEM

Deptof Aerospace Technology,National Univof Defence Technology,Changsha,430073;Deptof Aerospace Technology,National Univof Defence Technology,Changsha,430073;Deptof Aerospace Technology,National Univof Defence Technology,Changsha,430073;Beijing Instof Space System Engineering,Beijing,100076

Published:2021-08-15

摘要/Abstract

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

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 studiedThe 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

黎勤武,张为华,王振国,李军辉. 空间发动机系统关机过程水击现象理论分析[J]. 推进技术, 1998, 19(3): 27-29.