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激波诱导甲烷点火化学反应区的可视化实验研究 被引量：4

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摘要 研究激波诱导甲烷/空气混合物点燃的反应区特征,对于认识其气相爆轰规律有着重要意义.在激波管平台上,进行了当量比甲烷/空气混合物的激波点火实验,并采用化学发光成像和平面激光诱导荧光(PLIF,planar laser induced fluorescence)等方法得到了不同工况下的反应区特征.结果表明,由于在弱点燃工况下诱导区的着火延迟期沿激波传播方向的梯度较小,给非线性化学反应过程提供了更多的时间,反应特征出现显著的不均匀性;而随着激波的增强,这种不均匀性显著减小,在强点燃工况反应区呈规则的爆轰波结构.单脉冲PLIF方法测量的OH基相对分布揭示的反应区特征与文中其他方法的测量结果相一致,并和前人的相关研究结论相符,为激波管内激波和气相物质相互作用条件下进行高时空分辨率测量提供了新的方法和思路.
作者 王高峰 马承飚 王宝源 林其钊
机构地区 中国科学技术大学热科学和能源工程系
出处 《科学通报》 EI CAS CSCD 北大核心 2008年第19期2371-2378,共8页 Chinese Science Bulletin
基金 国家高技术研究发展计划(编号:2006AA05Z210) 中国科学院研究生创新基金资助项目
关键词 激波点火 化学发光成像 平面激光诱导荧光 弱点燃 强点燃 甲皖 OH基
分类号 O381 [理学—流体力学]
  • 相关文献

参考文献12

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二级参考文献14

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共引文献7

同被引文献49

  • 1王苏,范秉诚,何宇中,崔季平.硅烷对JP10和煤油点火特性影响的激波管研究[J].力学学报,2007,39(4):460-465. 被引量：9
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引证文献4

二级引证文献29

科学通报
2008年 第19期

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