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Journal of Projectiles, Rockets, Missiles and Guidance >

2011 , Vol. 31 >Issue 6: 141 - 145

DOI: https://doi.org/10.15892/j.cnki.djzdxb.2011.06.026

ROCKETS TECHNOLOGY

Numerical Simulation of Supersonic Mixing Layers by Hybrid LES/RANs Method

  • YAN Zhihui ,
  • LIU Weidong ,
  • FAN Zhouqin
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  • College of Aerospace and Material Engineering, National University of Defense Technology, Changsha 410073, China

Received date: 2011-03-09

  Online published: 2025-05-30

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Abstract

In order to determine the discipline of the development of the supersonic mixing layer, the hybrid LES/RANS method was applied to simulate the influence of the clapboard thickness, the pressure mismatch degree and fuel components. Besides, the corresponding mixing efficiency and the total-pressure loss were analyzed. The results suggest that within a certain range, the thicker the clapboard is, the higher the mixing efficiency and the total-pressure loss are; the pressure mismatch degree is nonlinear to the mixing efficiency and the total-pressure loss. In general, the higher the pressure mismatch degree is, the higher the mixing efficiency is and the lower the total-pressure loss is; the nearer the hydrogen is to the equivalent mass fraction, the higher the mixing efficiency and the total-pressure loss are.

Key words： supersonic mixing layer; mixing efficiency; total-pressure loss

Cite this article

YAN Zhihui , LIU Weidong , FAN Zhouqin . Numerical Simulation of Supersonic Mixing Layers by Hybrid LES/RANs Method[J]. Journal of Projectiles, Rockets, Missiles and Guidance, 2011 , 31(6) : 141 -145 . DOI: 10.15892/j.cnki.djzdxb.2011.06.026

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