CARS在超音速燃烧研究中的应用  

Study of supersonic combustion by CARS measurement technique

作　　者：赵建荣[1] 杨仕润[1] 俞刚[1] 

机构地区：[1]中国科学院力学研究所高温气体动力学开放研究实验室,北京100080

出　　处：《激光技术》2000年第4期207-212,共6页Laser Technology

基　　金：国家自然科学基金; 86 3 2 2专题项目资助

摘　　要：报道了氮、氧和水的Q支CARS谱以及氢的S(5)和S(6 )纯转动CARS的测量结果 ,并用来确定超音速燃烧火焰中的温度及氢和氧的浓度 ;用水的Q支CARS谱得到共振与非共振谱积分面积比随浓度的变化曲线。提出并发展的同时测量氢和氧的CARS谱新方法 ,为同时测量火焰温度和氢、氧浓度提供了一条途径 ,特别对不含氮的燃烧系统更具重要意义。The Q-branch CARS of N 2, O 2,H 2O and rota tional CARS of H 2(S(5) and S(6)) were measured and used to determining temper atures and concentrations of H 2 and O 2 in a supersonic combustion flame. The Q-branch CARS of H 2O were used to obtain the curve of area ratio of resonat and non-resonat CARS versus concentration. The new method of simultaneously measuring CARS of H 2 and O 2, which was developed in our laboratory, provides a way for simultaneously obtaining temperature and concentration of H 2 and O 2 in flame, especially for nitrogen free condition.

关 键 词：气体动力学 CARS谱 超音速燃烧 光学测量 

分 类 号：V211[航空宇航科学与技术—航空宇航推进理论与工程]