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弹箭与制导学报 >

2023 , Vol. 43 >Issue 6: 79 - 86

DOI: https://doi.org/10.15892/j.cnki.djzdxb.2023.06.013

燃料贴壁式固体超燃冲压发动机推力性能研究

  • 张皓 1, 2 ,
  • 黄萌 1, 2 ,
  • 邓恒 1, 2 ,
  • 田小涛 1, 2 ,
  • 颜密 1, 2 ,
  • 贾胜锡 1, 2
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  • 1 西安现代控制技术研究所,陕西 西安 710065
  • 2 现代控制技术重点实验室, 陕西 西安 710065

张皓(1993—),男,工程师,博士,研究方向:超燃冲压发动机。

收稿日期: 2023-02-03

  网络出版日期: 2024-12-30

收起

Research on Thrust Performance of Solid Fuel Stick Scramjet

  • ZHANG Hao 1, 2 ,
  • HUANG Meng 1, 2 ,
  • DENG Heng 1, 2 ,
  • TIAN Xiaotao 1, 2 ,
  • YAN Mi 1, 2 ,
  • JIA Shengxi 1, 2
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  • 1 Xi'an Modern Control Technology Research Institute, Xi'an 710065, Shaanxi,China
  • 2 Key Laboratory for Modern Control Technology, Xi'an 710065, Shaanxi, China

Received date: 2023-02-03

  Online published: 2024-12-30

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摘要

燃料贴壁式固体超燃冲压发动机具有比冲高、结构简单、维护方便等优点,但也伴随着发动机推力不稳定问题。基于能量守恒原理,建立了固体超燃推力零维模型。该模型避免了一维推力模型中数值奇异与数值刚性问题。基于此模型,开展了燃料质量流量与空气流量对固体超燃燃烧室推力的影响研究。结果表明,燃料质量流量特性对推力的稳定性有显著影响。通过燃面退移速率与燃烧室构型的匹配,理论上可以构造出使推力变化幅度较小的发动机构型。

关键词： 固体燃料超燃冲压发动机; 零维模型; 燃烧室; 推力

本文引用格式

张皓 , 黄萌 , 邓恒 , 田小涛 , 颜密 , 贾胜锡 . 燃料贴壁式固体超燃冲压发动机推力性能研究[J]. 弹箭与制导学报, 2023 , 43(6) : 79 -86 . DOI: 10.15892/j.cnki.djzdxb.2023.06.013

Abstract

Fuel stick scramjet has the advantages of high specific impulse, simple structure and easy maintenance, but it is also accompanied by the problem of engine thrust instability. Based on the principle of energy conservation, a zero-dimensional model of solid scramjet thrust is established. This model avoids the problem of numerical singularity and numerical rigidity in one-dimensional thrust model. Based on this model, the effects of fuel mass flow and air flow on combustor thrust are studied. The results show that the fuel flow characteristics have great influence on thrust stability. By matching the burning rate with the combustor configuration, the engine configuration with small thrust amplitude can be constructed theoretically.

Key words： solid fuel scramjet; zero-dimensional thrust model; combustor; thrust

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