中国物理B ›› 1995, Vol. 4 ›› Issue (11): 825-833.doi: 10.1088/1004-423X/4/11/005

• CONDENSED MATTER: STRUCTURAL, MECHANICAL, AND THERMAL PROPERTIES • 上一篇    下一篇

GAS DYNAMIC PROBLEMS CAUSED BY THE GENERATION OF THE RADICALS IN A SUPERSONIC JET

刘世林1, 张立敏1, 陈从香1, 马兴孝1, 朱念麟2   

  1. (1)Department of Chemical Physics, University of Science and Technology of China, Hefei 230026 , China; (2)Department of Physics, Yunnan University, Kunming 650091 , China
  • 收稿日期:1994-11-09 出版日期:1995-11-20 发布日期:1995-11-20

GAS DYNAMIC PROBLEMS CAUSED BY THE GENERATION OF THE RADICALS IN A SUPERSONIC JET

LIU SHI-LIN (刘世林)a, ZHANG LI-MIN (张立敏)a, CHEN CONG-XIANG (陈从香)a, MA XING-XIAO (马兴孝)a, ZHU NIAN-LIN (朱念麟)b   

  1. a Department of Chemical Physics, University of Science and Technology of China, Hefei 230026 , China; b Department of Physics, Yunnan University, Kunming 650091 , China
  • Received:1994-11-09 Online:1995-11-20 Published:1995-11-20

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摘要： A simplified one-dimensional model was proposed to treat the gas dynamic problems in a supersonic jet, which was used to produce radicals cooled by supersonic expansion, Based on this model, the gas dynamic equations can be integrated directly to obtain the evolution or the translational temperature and the rotational temperature of free radicals as well as the molecule density. The results show that the heating position where the radicals are generated and the initial rotational temperature of radicals have little effect on the rotational temperature at the down stream detection point, if the heating position is close to the nozzle orifice.

Abstract: A simplified one-dimensional model was proposed to treat the gas dynamic problems in a supersonic jet, which was used to produce radicals cooled by supersonic expansion, Based on this model, the gas dynamic equations can be integrated directly to obtain the evolution or the translational temperature and the rotational temperature of free radicals as well as the molecule density. The results show that the heating position where the radicals are generated and the initial rotational temperature of radicals have little effect on the rotational temperature at the down stream detection point, if the heating position is close to the nozzle orifice.

中图分类号:  (Supersonic and hypersonic flows)

  • 47.40.Ki
47.10.-g (General theory in fluid dynamics)