二维高超声速钝体激波层紫外辐射的实验观察  

PRELIMINARY OBSERVATION ON ULTRAVIOLET EMISSION SPECTRA IN NON-EQUILIBRIUM 2-D HYPERSONIC BLUNT BODY SHOCK LAYER FLOW

作　　者：余西龙[1] 林贞彬[1] 竺乃宜[1] 张恒利[1] 郭大华[1] 杨乾锁[1] 林建民[1] 

机构地区：[1]中国科学院力学研究所高温气体动力学实验室,北京100080

出　　处：《力学学报》2003年第3期321-325,共5页Chinese Journal of Theoretical and Applied Mechanics

基　　金：国家自然科学基金资助项目(19982005和10032050)

摘　　要：利用光学多道分析仪,在JF-10氢氧爆轰驱动高焓激波风洞上测量了二维钝体驻点的发射光谱.实验结果表明,在200～280nm的波长范围内,辐射主要来自NO的γ系,同时还分辨出了OH的A-X跃迁、N2+的B-X跃迁和烧蚀金属的原子线辐射.Non-intrusive measurement has been made to investigate emission spectra from shock layer flow in JF-10 shock tunnel, which is first driven by hydrogen oxygen detonation driver. The optical multi-channel analyzer is employed to obtain radiance for 2-d hypersonic blunt body flow. The results show the main Emission spectra at wavelength range from 200-280nm is mainly come from NO γ system (A2∑→X2∏ transition). Strong emission from OH A-X transition, N2+(1-) B-X transition and metal particles were also observed.

关 键 词：高超声速飞行器 光学多道分析仪 高焓激波风洞 发射光谱 非接触测量 

分 类 号：V211.751[航空宇航科学与技术—航空宇航推进理论与工程]