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Journal of Projectiles, Rockets, Missiles and Guidance >

2019 , Vol. 39 >Issue 6: 130 - 133

DOI: https://doi.org/10.15892/j.cnki.djzdxb.2019.06.028

Numerical Study of Effect of Buoyancy on Flow and Heat Transfer of Aviation Kerosene in Rectangular Channel

  • WANG Zhuangzhuang 1 ,
  • ZHANG Dengcheng 1 ,
  • ZHOU Zhangwen 1 ,
  • SU Yin 2
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  • 1 Aeronautics Engineering College, Air Force Engineering University, Xi’an 710038, China
  • 2 Department of Basic Sciences, Air Force Engineering University, Xi’an 710051, China

Received date: 2019-01-07

  Online published: 2025-05-12

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Abstract

In order to investigate the influence of buoyancy on the kerosene flow and heat transfer in the rectangular regenerative cooling channel,the effect of buoyancy was simulated by applying overload,and the flow and heat transfer characteristic of RP-3 aviation kerosene in rectangular channel were studied by numerical method.The secondary flow velocity parameter was introduced to analyze the changing rule of secondary flow.The results show that with the increase of overload,the effect of buoyancy is more obvious,and the secondary flow velocity in the channel increases;the maximum wall temperature of the cooling channel on the upper wall and the two side walls of the combustor is reduced by more than 4.5%,and the heat transfer deterioration is obviously improved,but the maximum wall temperature of the cooling channel on the lower wall is slightly increased.

Key words： supercritical pressure; buoyancy; rectangular channel; RP-3 kerosene; overload; secondary flow; flow and heat transfer

Cite this article

WANG Zhuangzhuang , ZHANG Dengcheng , ZHOU Zhangwen , SU Yin . Numerical Study of Effect of Buoyancy on Flow and Heat Transfer of Aviation Kerosene in Rectangular Channel[J]. Journal of Projectiles, Rockets, Missiles and Guidance, 2019 , 39(6) : 130 -133 . DOI: 10.15892/j.cnki.djzdxb.2019.06.028

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