高空羽流试验系统和压力场的测量  

An Experimental System of High-Altitude Plume Flow and the Pressure Field Test

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]上海交通大学机械与动力工程学院,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：《上海交通大学学报》2007年第9期1542-1545,1564,共5页Journal of Shanghai Jiaotong University

摘　　要：为研究空间发动机羽流对卫星的影响,建立针对太阳反光镜、光学仪表和低温红外传感器等重要载荷的羽流污染预报数据库,开发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;电热气体模拟发动机;稳压气源;测量系统及其温控.采用计算流体动力学(CFD)和直接模拟Monte Carlo(DSMC)相结合的方法完成了羽流场的数值模拟,计算结果为试验参数的选择提供了重要依据.试验系统满足在mPa量级的真空压力和(93±5)K的背景温度下的稳定运行和精确测量.完成了国内首次在模拟100 km高空条件下,羽流场关键参数——压力场的测量.In order to study the space thruster plume flow effect on satellite and build the database that can be used to predict the function degradation of optical solar reflector （OSR）, optical elements, and cryogenic infrared sensor caused by the thruster plume contamination, a set of plume test system was developed and experimental investigations were performed. The experimental system includes a simulated space environment vacuum facility, a simulated electric-heat-gas thruster, a steady pressure gas supply system, test system and temperature control system. Numerical calculation was finished with the combined method CFD and direct simulation Monte Carlo（DSMC）, and the results were served as the important reference data in the selection of the test parameters. The experimental system works well and the measurements perform accurately under the vacuum pressure of the mPa order and the background temperature of （93±5） K. The most important parameter of the plume flow, pressure, was tested at the simulated space environment with 100 kilometers altitude.

关 键 词：羽流试验 羽流污染 真空 低温 压力场 

分 类 号：O351.3[理学—流体力学]