空间站舱外泄漏羽流场数值模拟  

Numerical simulation of plume field of leakage in space station

作　　者：花雨 毕海林 孙伟[2] 孙立臣[2] 孟冬辉[2] 王旭迪 HUA Yu;BI Hailin;SUN Wei;SUN Lichen;MENG Donghui;WANG Xudi(School of Mechanical Engineering,Hefei University of Technology,Hefei 230041,China;Beijing Institute of Spacecraft Environment Engineering,Beijing 100094,China)

机构地区：[1]合肥工业大学机械工程学院,合肥230041 [2]北京卫星环境工程研究所,北京100094

出　　处：《航天器环境工程》2019年第4期313-317,共5页Spacecraft Environment Engineering

基　　金：北京卫星环境工程研究所创新基金项目(编号:CAST-BISEE 2017-012)

摘　　要：针对空间站运行过程中可能发生的舱外泄漏,建立真空环境中气体分子运动的物理模型,运用直接模拟蒙特卡罗(DSMC)方法对气体羽流场进行数值模拟,得到不同条件下的羽流场气体密度分布数据.研究结果可为后期的实验提供依据.The sealing performance of the space station is of vital importance in ensuring the normal operation of the station.In this paper,the physical model of the molecular movement in the vacuum environment is established to analyze the potential ammonia leakage which may take place during the operation of the space station.The DSMC method is used for numerically simulating the process of the gas leaking into the space.The number density distribution data of the plume field under different conditions are obtained,to provide a theoretical basis for the subsequent experiments.

关 键 词：空间站 气体泄漏 羽流 数值模拟 直接模拟蒙特卡罗方法 

分 类 号：V411.8[航空宇航科学与技术—航空宇航推进理论与工程]