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弹箭与制导学报 >

2012 , Vol. 32 >Issue 6: 99 - 102

DOI: https://doi.org/10.15892/j.cnki.djzdxb.2012.06.018

火箭技术

先进旋涡燃烧室钝体结构参数选择的数值分析

  • 孙海俊 ,
  • 曾卓雄 ,
  • 徐义华
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  • 南昌航空大学飞行器工程学院,南昌 330063

孙海俊(1987-),男,江西樟树人,硕士研究生,研究方向:航空宇航推进理论与工程。

收稿日期: 2012-02-23

  网络出版日期: 2025-05-29

基金资助

国家自然科学基金(51066006);航空科学基金(2009ZB56004)

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Numerical Simulation of Bluff-body Structural Parameters in Advanced Vortex Combustor

  • SUN Haijun ,
  • ZENG Zhuoxiong ,
  • XU Yihua
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  • Aircraft Engineering College, Nanchang Hangkong University, Nanchang 330063, China

Received date: 2012-02-23

  Online published: 2025-05-29

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摘要

为确定先进旋涡燃烧室前后钝体结构参数的最佳匹配关系,运用数值模拟方法对不同钝体结构参数影响下的燃烧室冷态流动进行了研究。结果表明,模型I中的钝体布置方式具有较好的流动特性,且当钝体结构参数当量比为H₁/H₂=0.7、S/H₁=0.6时,凹腔内旋涡稳定性高,燃烧室总压损失系数小;AVC结构参数的选择不能完全照搬TVC稳定驻涡形成结构关系式,需要区别对待。

关键词： 冲压发动机; 旋涡燃烧室; 结构参数; 湍流; 总压损失

本文引用格式

孙海俊 , 曾卓雄 , 徐义华 . 先进旋涡燃烧室钝体结构参数选择的数值分析[J]. 弹箭与制导学报, 2012 , 32(6) : 99 -102 . DOI: 10.15892/j.cnki.djzdxb.2012.06.018

Abstract

In order to study the best matching relation of bluff-body structural parameters in advanced vortex combustor (AVC), numerical simulation on the cold state flow in combustor was carried out. The results indicate that the combustor has better flow characteristics by the layout of bluff-body presented in model I, when the equivalent ratios of structural parameters are H₁/H2 =0.7 and S/H₁ = 0.6, total pressure loss coefficient is lower and stability of vortex is stronger. The selection rule of structural parameters in AVC can not copy totally from the stability of vortex formation structure relation in Trapped Vortex Combustor (TVC) .

Key words： ramjet; vortex combustor; structural parameters; turbulence; total pressure loss

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参考文献

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