燃烧场参数的激光诊断技术研究

Study on laser diagnostics applied to combustion and flame

摘要: 介绍了燃烧场参数的激光诊断技术的研究进展，给出了用自发拉曼散射、激光诱导荧光、相干反斯托克斯拉曼散射法诊断燃烧场温度和组分的实验系统和部分实验结果，单次测量火焰的温度和组分浓度相对误差小于10%；利用平面激光诱导荧光技术获得了稳定燃烧场二维OH荧光图像，并分析了激光作用区域火焰二维温度场的分布。

Abstract: The laser combustion diagnostic system was developed. With tunable lasers, the temperatures and species in methaneair flame were given by laserinduced fluorescence, Raman scattering and CARS. The spectralfit precision was less than 10% for single shot measurement. The fluorescence images of OH were obtained in the alcohol and methaneair flames. The structures of the temperature fields were analyzed.