低温推进剂火箭发动机预冷方案研究.pdf

文档介绍：上海航天

第卷年第期
29 2012 4 AEROSPACE SHANGHAI 14
文章编号
:1006-1630(2012)04-0041-08
低温推进剂火箭发动机预冷方案研究
孙礼杰1 樊宏湍2 刘增光2 张亮1
, , ,
上海宇航系统工程研究所上海上海航天技术研究院上海
(1. , 201108;2. , 201109)
摘要对国内外低温推进剂火箭发动机采用的排放预冷自然循环预冷和强制循环预冷等预冷方案进行了
: 、
综述。介绍了国内新一代运载火箭使用的新型低温液体发动机的预冷研究。对液氧煤油发动机预冷方案中推进
剂类型、发动机所在子级、自然循环多因素综合等影响方案的主要因素,以及发动机预冷方案中的维护、沸腾传热
与两相流数值模拟等关键技术进行了分析。
关键词:运载火箭;低温推进剂;发动机预冷;排放预冷;自然循环预冷;强制循环预冷
中图分类号文献标志码
:V434 :A
Research on Precooling of Cryogenic Propellant Rocket Engines
SUN Li-jie1,FAN Hong-tuan2,LIU Zeng-guang2,ZHANG Liang1
( System Engineering Shanghai,Shanghai 201108,China;
Academy of Spaceflight Technology,Shanghai 201109,China)
Abstract:The bleed,natural recirculation and forced recirculation precooling methods used in cryogenic
propellant rocket engine in domestic and aboard were summarized in this research on the precooling of
new cryogenic propellant rocket engine for the new generation launch vehicle in China was key
factors of propellant type,the sub-stage of the engine and multifactor integrated of natural recirculation which
affected the precooling scheme,and the key technologies such as the maintaining and boiling heat transfer and two-
phase flow numerical simulation were discussed.
Keywords:Launch vehicle;Cryogenic propellant;Engine precooling;Bleed precooling;Natural recir