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高温高压条件下甲醇-空气-稀释气层流燃烧速度测定 被引量:4

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摘要 利用高速纹影摄像法在定容燃烧弹内研究了不同初始压力、初始温度、气体稀释度和燃空当量比下甲醇-空气混合气预混层流燃烧速度和Markstein长度,分析了火焰拉伸对火焰传播速度的影响.基于火焰纹影照片,分析了火焰前锋面形态随混合气初始状态的变化规律.结果表明:甲醇-空气混合气层流燃烧速度随初始压力的增加而降低,随初始温度的增加而增加.氮气作为稀释气添加后,混合气的燃烧速度随稀释度增加而减小.Markstein长度值随初始压力增加而减小,随初始温度增加而减小,随气体稀释度增加而增大.随初始压力增加,火焰前锋面不稳定性增加,皱褶火焰前锋面出现的时刻提前.
出处 《自然科学进展》 北大核心 2008年第11期1304-1314,共11页
基金 国家自然科学基金(批准号:50576070) 国家自然科学基金创新研究群体科学基金(批准号:50521604)资助项目
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参考文献12

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同被引文献48

  • 1廖世勇,井明科,程前,黄佐华,蒋德明.乙醇—空气预混层流火焰特性的试验研究[J].内燃机学报,2007,25(5):469-474. 被引量:9
  • 2唐华浩,孙俊,李格升,潘志翔.乙醇预混层流火焰结构的模拟研究[J].武汉理工大学学报,2009,31(2):66-69. 被引量:4
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  • 4王倩,黄佐华,余金荣,张勇,曾科,苗海燕,蒋德明.二甲醚—空气混合气层流燃烧速度的测定[J].内燃机学报,2007,25(4):372-378. 被引量:24
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  • 10Lamoureux N, Djebayli-Chaumeix N, Paillard C E. Laminar Flame Velocity Determination for H2-Air-He-CO2 Mixtures Using the Spherical Bomb Method[J]. Experimental Thermal and Fluid Science, 2003, 27(4) :385-393.

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