超音速燃烧室氢氧基平面激光诱导荧光测量  

Planar laser induced fluorescence imaging of OH radical in supersonic combustor

作　　者：杨仕润[1] 赵建荣[1] 俞刚[1] 张新宇[1] 

机构地区：[1]中国科学院力学研究所高温气体动力学重点实验室,北京100080

出　　处：《激光技术》2004年第1期20-22,32,共4页Laser Technology

基　　金：国家自然科学重点基金资助项目 (1 0 2 30 6 0 )

摘　　要：用平面激光诱导荧光 (PLIF)技术测量了氢 /空气和煤油 /空气超音速燃烧室氢氧基的荧光以及背景辐射光的图像。实验结果表明 ,PLIF是鉴别对燃烧性能起关键作用的燃料 /空气混合过程的有效手段 ,发现在超音速燃烧室中PLIF氢氧基主要集中在凹腔区域 。Planar laser induced fluorescence (PLIF) technique is utilized to measure the images of hydroxyl radicals (OH) fluorescence and spontaneous emission in hydrogen/air and kerosene/air supersonic combustion. The results show that PLIF has been an efficient approach for identification of fuel/air mixing and combustion process. It is found that large number of OH radical is concentrated in the cavity range of the combustor, it is helpful to understand the mechanism of the cavity as the flame holder in supersonic combustor.

关 键 词：平面激光诱导荧光 超音速燃烧 氢氧基 凹腔 

分 类 号：TN249[电子电信—物理电子学]