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弹箭与制导学报 >

2015 , Vol. 35 >Issue 2: 97 - 100

DOI: https://doi.org/10.15892/j.cnki.djzdxb.2015.02.025

火箭技术

特型燃气喷口对补燃室掺混燃烧的影响

  • 王同辉 ,
  • 白涛涛 ,
  • 莫展 ,
  • 单睿子 ,
  • 曹军伟
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  • 中国空空导弹研究院,河南洛阳 471009

王同辉(1982-),男,河南新乡人,工程师,硕士,研究方向:固体火箭冲压发动机技术。

收稿日期: 2014-03-16

  网络出版日期: 2025-05-26

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Effects of Special Fuel-gas Jet on Mixing and Combustion in Afterburning Chamber

  • WANG Tonghui ,
  • BAI Taotao ,
  • MO Zhan ,
  • SHAN Ruizi ,
  • CAO Junwei
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  • China Airborne Missile Academy, Henan Luoyang 471009, China

Received date: 2014-03-16

  Online published: 2025-05-26

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摘要

采用N-S方程、k-ε双方程和非预混燃烧简化PDF模型,对3种特型燃气喷口结构的固冲发动机补燃室掺混燃烧流场进行了数值研究。分析3种特型燃气喷口对补燃室中掺混燃烧的影响,并与常规型燃气喷口的仿真结果进行了对比分析。结果表明:特型燃气喷口可以有效增强补燃室中燃气与空气的掺混效果,提高燃气的完全燃烧程度,提升固冲发动机补燃室的特征速度;2#和3#特型喷口的补燃室掺混燃烧效果要比1#特型喷口更好,但是会带来更大的总压损失。

关键词： 固体火箭冲压发动机; 补燃室; 掺混燃烧; 特型燃气喷口; 特征速度

本文引用格式

王同辉 , 白涛涛 , 莫展 , 单睿子 , 曹军伟 . 特型燃气喷口对补燃室掺混燃烧的影响[J]. 弹箭与制导学报, 2015 , 35(2) : 97 -100 . DOI: 10.15892/j.cnki.djzdxb.2015.02.025

Abstract

Based on the N-S equation, k-ε turbulence models and no-premixed combustion simplified PDF models, numerical studies on the mixing and combustion of fuel-gas and air in the afterburning chamber of solid rocket ramjet were carried out fewer than three special fuel-gas jets structures. The effects of the three special fuel-gas jets were analyzed and compared with simulation results of standard fuel-gas jets. The results show that, the mixing efficiency, full combustion extent and characteristic velocity in the afterburning chamber of solid rocket ramjet promoted when using special fuel-gas jets; mixing and combustion effects of 2# and 3# special fuel-gas jets better than that of 1# special fuel-gas jet, but they would bring more total pressure loss.

Key words： solid rocket ramjet; afterburning chamber; mixing and combustion; special fuel-gas jet; characteristic velocity

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