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弹箭与制导学报 >

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

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

考虑浮升力影响的矩形通道内航空煤油流动换热数值研究

  • 王壮壮 1 ,
  • 张登成 1 ,
  • 周章文 1 ,
  • 粟银 2
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  • 1 空军工程大学航空工程学院, 西安 710038
  • 2 空军工程大学基础部, 西安 710051

王壮壮(1994-),男,河南周口人,硕士研究生,研究方向:超燃冲压发动机再生冷却研究。

收稿日期: 2019-01-07

  网络出版日期: 2025-05-12

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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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摘要

为了考察浮升力对再生冷却矩形通道内煤油流动换热的影响,通过施加过载来模拟浮升力效应,采用数值方法研究了RP-3航空煤油在矩形通道内的流动与换热特性,引入了二次流速度参数分析二次流的变化规律。结果表明:随着过载的增加,浮升力效应更加明显,通道内二次流速度增大;燃烧室上壁面和两侧壁面冷却通道最高壁温均减小4.5%以上,传热恶化现象得到明显改善,但下壁面冷却通道最高壁温略有提高。

关键词： 超临界压力; 浮升力; 矩形通道; RP-3煤油; 过载; 二次流; 流动换热

本文引用格式

王壮壮 , 张登成 , 周章文 , 粟银 . 考虑浮升力影响的矩形通道内航空煤油流动换热数值研究[J]. 弹箭与制导学报, 2019 , 39(6) : 130 -133 . DOI: 10.15892/j.cnki.djzdxb.2019.06.028

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

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