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基于高速摄影图像处理统计分析的点火过程试验

蔡尊 王振国 孙明波 汪洪波 梁剑寒

蔡尊, 王振国, 孙明波, 汪洪波, 梁剑寒. 基于高速摄影图像处理统计分析的点火过程试验[J]. 航空动力学报, 2016, 31(5): 1105-1112. doi: 10.13224/j.cnki.jasp.2016.05.011
引用本文: 蔡尊, 王振国, 孙明波, 汪洪波, 梁剑寒. 基于高速摄影图像处理统计分析的点火过程试验[J]. 航空动力学报, 2016, 31(5): 1105-1112. doi: 10.13224/j.cnki.jasp.2016.05.011
CAI Zun, WANG Zheng-guo, SUN Ming-bo, WANG Hong-bo, LIANG Jian-han. Experiment of ignition process based on statistical analysis of image processing[J]. Journal of Aerospace Power, 2016, 31(5): 1105-1112. doi: 10.13224/j.cnki.jasp.2016.05.011
Citation: CAI Zun, WANG Zheng-guo, SUN Ming-bo, WANG Hong-bo, LIANG Jian-han. Experiment of ignition process based on statistical analysis of image processing[J]. Journal of Aerospace Power, 2016, 31(5): 1105-1112. doi: 10.13224/j.cnki.jasp.2016.05.011

基于高速摄影图像处理统计分析的点火过程试验

doi: 10.13224/j.cnki.jasp.2016.05.011
基金项目: 

国家自然科学基金(91016028)

详细信息
    作者简介:

    蔡尊(1989-),男,黑龙江哈尔滨人,博士生,研究领域为航空宇航推进理论与工程高超声速推进技术.

  • 中图分类号: V235.213

Experiment of ignition process based on statistical analysis of image processing

  • 摘要: 针对空气来流马赫数为2.1、总温为846K,总压为0.7MPa的条件下凹腔内的强迫点火过程,利用高速摄影观测了凹腔主动喷注方式的乙烯强迫点火试验.基于高速摄影图像的合成分析和概率统计,提出了能够定量分析出点火过程凹腔火焰稳定和燃烧室火焰分布的试验研究方法;利用该研究方法,采用主动喷注方式在全局当量比为0.15和0.17(相应的主动喷注当量比分别为0.04和0.06)的条件下,对比研究了采用凹腔后壁面喷注的喷注方案和采用凹腔前壁喷注和后壁面喷注相结合的喷注方案的点火试验过程;定量分析了这两种喷注方案点火后的凹腔火焰稳定和燃烧室内的火焰分布.当凹腔主动喷注当量比为0.04时,点火凹腔内并没有形成良好的局部压力反馈,火焰在点火凹腔内常以不连续形式稳定存在.当主动喷注当量比达到0.06时,整个燃烧室的火焰分布要更加均匀.针对超声速来流条件下的点火过程瞬态图像,该方法能够有效地开展定性分析和定量研究.

     

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出版历程
  • 收稿日期:  2014-09-04
  • 刊出日期:  2016-05-28

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