节点文献
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
【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.
【Abstract】 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】 高焓激波风洞;
发射光谱;
非接触测量;
高超声速流;
【Key words】 high enthalpy shock tunnel; emission spectroscopy; line of sight non-intrusive measurement; hypersonic flow;
【Key words】 high enthalpy shock tunnel; emission spectroscopy; line of sight non-intrusive measurement; hypersonic flow;
【基金】 国家自然科学基金资助项目(19982005和10032050)
- 【文献出处】 力学学报 ,Acta Mechanica Sinica , 编辑部邮箱 ,2003年03期
- 【分类号】O354.5
- 【被引频次】6
- 【下载频次】152