凹腔型亚燃冲压发动机燃烧效率研究

谭建国; 黄国庆; 潘余; 王振国

凹腔型亚燃冲压发动机燃烧效率研究

国防科学技术大学航天与材料工程学院,长沙 410073

基金项目: 国家自然科学基金(51076164)

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出版历程
- 收稿日期: 2010-05-22
- 修回日期: 2010-10-18
- 刊出日期: 2011-06-28

Research on combustion efficiency of cavity-type ramjet

College of Aerospace and Materials Engineering, National University of Defense Technology,Changsha 410073,China

摘要

摘要: 通过开展亚燃冲压发动机直连式试验,研究了不同来流条件、不同余气系数时的燃烧性能.结果表明:燃烧效率受来流温度的影响较小,但随着余气系数增加,燃烧效率降低.总体而言,凹腔型燃烧室具有0.9左右的燃烧效率,初步达到了亚燃冲压发动机的实用化要求.
- 亚燃冲压发动机 /
- 燃烧效率 /
- 凹腔 /
- 余气系数 /
- 直连式
Abstract: Direct-connected experiments were conducted to reveal combustion performance of cavity-type ramjet under different incoming flow and excess air coefficients.Results show that the combustion efficiency decreases with excess air coefficient,but depends little on the temperature of the incoming flow.Generally speaking,90% combustion efficiency of cavity-type combustor is sufficient enough to satisfy the requirement of ramjet.
- ramjet /
- combustion efficient /
- cavity /
- excess air coefficient /

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参考文献(12)

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