航天器推进系统管路充填过程动态特性(Ⅱ)实验模拟与结果评估  

Dynamic characteristics of priming process in spacecraft propulsion systems (Ⅱ)experimental results and reliability analysis

作　　者：程谋森[1] 张育林[1] 姜春林[1] 谢伦娅[1] 熊玫 

机构地区：[1]国防科技大学航天与材料工程学院,湖南长沙410073

出　　处：《推进技术》2000年第3期1-5,共5页Journal of Propulsion Technology

摘　　要：针对某一具有工程背景的卫星推进系统 ,建立了一个包括抽真空设备的实验模拟系统 ,以水为介质进行真空充填过程实验研究 ,结果表明充填过程中存在较强水击 ;利用数学模型对实验室系统充填过程进行仿真 ,计算结果与实验测量值吻合 。A series of tests using water as a reference fluid was performed in the laboratory experimental setup to ascertain the integrity of a feed system on board satellites subjected to water hammer effects It was concluded that such pressure surge may be as high as 7～8 times of tank pressure and should be given sufficient concern The test data were compared with that obtained using mathematical modeling The highly significant correlation between predictions and test results showed that the employed mathematical model was reasonably reliable

关 键 词：航天器推进系统 非定常流 水冲击 动态特性 

分 类 号：V421.42[航空宇航科学与技术—飞行器设计]