显示OH浓度分布图像的平面激光诱导荧光技术  

Planar laser induced fluorescence of OH concentration distribution imaging

作　　者：赵建荣[1] 陈立红[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空气动力学开放研究实验室,北京100080

出　　处：《光学技术》2000年第5期429-431,434,共4页Optical Technique

基　　金：国家自然科学基金资助项目!(1 97892 0 2 ;597760 35)

摘　　要：用平面激光诱导荧光 (PLIF)技术测量平面火焰炉、狭缝火焰炉的单脉冲激光诱导OH荧光。由平面荧光图可得到氢氧基相对浓度分布和它的宽度。对于扩散火焰 ,高温区在OH带内侧 ;而对于预混火焰 ,二者基本一致。湍流火焰的PLIF图则清晰地显示出火焰面的不规则性。氢氧基的PLIF图像是研究火焰结构和流场的有力工具。The OH fluorescence imaging was obtained in flames of flat and slit flame burner by planar laser induced fluorescence using single laser pulse. The relative concentration distribution and width of OH radical can be displayed from planar fluorescence images. The high temperature zone is at inner side of OH zone for the diffusion flame, but both zones are approximately at the same position for the premixed flame. The PLIF imaging of turbulence flame displays irregularity of flame surface. OH PLIF technique provides a powerful implement for investigating flame construction and flow field.

关 键 词：平面激光诱导荧光 火焰 氢氧基浓度分布图像 

分 类 号：TN247[电子电信—物理电子学] O643.2[理学—物理化学]