真空羽流的数值模拟及真空羽流污染的数值模拟分析研究

NUMERICAL SIMULATION ON VACUUM PLUME AND NUMERICAL ANALYZING STUDY ON VACUUM PLUME CONTAMINATION

本文用ＤＳＭＣ方法对真空羽流场进行了数值模拟，所得数值模拟结果符合流动规律。建立了真空羽流污染的基本理论模型，并进行了真空羽流污染的数值计算与分析研究，所得结论与理论分析一致。本文的研究工作为进一步深入开展羽流污染规律研究打下了良好的基础，对工程设计具有重要的参考价值。

Vacuum plume and its contamination problem is a very difficult research problem which puzzles the astronautics designers all along,especially for communication satellites and space stations it appears more important.The present paper adopted the RSF method (one of DSMC methods,raised by Fan Jing and Shen Qing) numerically simulating the vacuum plume.In our research work,we computed three examples of vacuum plume.The gained results of vacuum plume computation confirmed the flow laws well and agreed well with each other.This paper has set up a theoretical model for vacuum plume contamination,carried the numerical calculation and analytically researched the vacuum plume contamination.The results that we gained agreed well with theoretical analysis and also agreed well with each other.The present research work has very important reference value for engineering design,and is a good begin for next deeply carrying the research about the vacuum plume contamination laws.