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Journal of Projectiles, Rockets, Missiles and Guidance >

2011 , Vol. 31 >Issue 5: 123 - 124,128

DOI: https://doi.org/10.15892/j.cnki.djzdxb.2011.05.027

ROCKETS TECHNOLOGY

Research on the Performance of Micro-nozzle by DSMC/EPSM Method

  • XIN Guoxun ,
  • LIU Yiwei
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  • 1 Shenyang Aircraft Corporation, Shenyang 110034, China
    2 Military Representative Office of Air Force in Shenyang Aircraft Corporation, Shenyang 110034, China

Received date: 2010-12-15

  Online published: 2025-05-30

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Abstract

In this paper, DSMC/EPSM method was employed to investigate the performance of micro-nozzle with uniform section. The two factors, geometrical structure of micro-nozzle and parameters of gas flow were investigated to understand how they act on the performance of micro-nozzle. The results showed: (1) the thrust and impulse of micro-thruster could be significantly affected by adjusting the parameters of geometrical structure of micro-nozzle, the maximum thrust and impulse were 0. 2639 mN and 1081. 9 m/s respectively, (2) the gas pressure and temperature had not obvious impact on the thrust and impulse of micro-thruster, (3) the flow state in micro-nozzle included continuous flow and slip flow and the flow state out of nozzle was transitional flow according to results of Knudsen number. The results of this paper provide relevant basis for optimal design of micro-thruster.

Key words： micro-thruster; micro-nozzle; DSMC/EPSM

Cite this article

XIN Guoxun , LIU Yiwei . Research on the Performance of Micro-nozzle by DSMC/EPSM Method[J]. Journal of Projectiles, Rockets, Missiles and Guidance, 2011 , 31(5) : 123 -124,128 . DOI: 10.15892/j.cnki.djzdxb.2011.05.027

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