不同隔板构型下带反应超声速混合层实验

李朗; 晏至辉; 刘彧

doi:10.13224/j.cnki.jasp.2017.01.005

不同隔板构型下带反应超声速混合层实验

doi: 10.13224/j.cnki.jasp.2017.01.005

李朗^1,2,
晏至辉³,
刘彧⁴

1.
中国科学技术大学工程科学学院近代力学系，合肥 230027
2.
中国空气动力研究与发展中心吸气式高超声速技术研究中心,四川绵阳 621000.
3.
中国空气动力研究与发展中心吸气式高超声速技术研究中心，四川绵阳 621000
4.
国防科学技术大学航天与材料工程学院，长沙 410073

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出版历程
- 收稿日期: 2015-05-18
- 刊出日期: 2017-01-28

Experiment on supersonic reacting mixing layer of splitters with different geometric configurations

摘要

摘要: 为了考察超声速混合层混合、燃烧流场特性，并探索其被动增强方法，利用高速纹影、自发辐射成像和平面激光诱导荧光(PLIF)技术对压力匹配条件下的超声速混合层在不同隔板构型下的流场特性进行研究.结果表明：相对于对混合层混合的影响，凹腔对燃烧的影响明显受到抑制；尾部交错结构隔板促进混合层流向涡的产生，大大提高了混合层内燃烧强度.
- 超声速混合层 /
- 自发辐射 /
- OH基PLIF /
- 燃烧 /
- 流向涡
Abstract: To investigate the mixing, combustion characteristic and passive mixingenhancement methods of supersonic mixing layer, pressure matched supersonic mixing layer with different geometric configurations was explored using highspeed schlieren photographs, spontaneous emission imaging and planar laser induced fluorescence(PLIF) imaging．Results showed that, the influence of cavity on supersonic mixing layers was repressive under combustion condition. Splitters with sawtooth trail induced largescale streamwise vortexes and great influence of combustion enhancement in supersonic mixing layer.
- supersonic mixing layer /
- spontaneous emission /
- OHPLIF(hydroxide radicalplanar laser induced fluorescence) /
- combustion /
- steamwise vortex

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参考文献(17)

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