空间发动机羽流场的试验研究  

Experimental investigation of the space thruster plume flow

作　　者：肖泽娟[1] 程惠尔[1] 周伟敏[2] 周世宏[2] 周红玲 

机构地区：[1]上海交通大学航空航天系,上海200240 [2]上海卫星工程研究所,上海200240 [3]上海航天动力机械研究所,上海200233

出　　处：《空气动力学学报》2008年第4期480-485,共6页Acta Aerodynamica Sinica

摘　　要：为研究空间发动机羽流对卫星的影响,建立羽流污染预报系统,研制了一套羽流试验系统并进行了试验研究。试验台主要包括空间环境模拟系统,电热气体发动机,稳压气源,轴向和径向移动装置,测量系统和温控系统。系统可在满足10-3Pa量级的真空压力和93±5K的背景温度下稳定运行和精确测量。本文完成了表征羽流特征的关键参数-压力场的测量,同时采用CFD和DSMC相结合的方法进行羽流场的数值模拟计算。测量数据与数值计算结果以及相似试验条件下Boyd等人的测量结果进行了对比。In order to study the space thurster plume flow effect on the satellite and build the database that can be used to predict the function degradation caused by the thurster plume contamination, a set of plume test system is developed and experimental investigation is performed. The experiment system discussed herein inludes a simulated space enviroment vacuum facility,an electric-heat-gas thruster,a steady pressure gas supply system,an axial movement device,a radial movement device,a test system and a temperature control system. The experiment system works well and the measurements perform accurately under the vacuum pressure of the 10-3 Pa order and the background temperature of 93 ±5K. The most important parameter of the plume flow,pressure,is tested and numerical calculation is finished with the combined method CFD and DSMC. The test data are compared with the numerical results and the Boyd＇s test results under the similar condition.

关 键 词：羽流试验 羽流污染 DSMC方法 CFD方法 

分 类 号：V211.7[航空宇航科学与技术—航空宇航推进理论与工程]