摘要
利用多通道光学分析仪测量激波波后不同时刻高温氮气的辐射光谱发现，辐射随时间发生强烈的变化。在非平衡态和平衡态，光谱的各条谱线强度有明显的差别。光谱的结构特征也依赖于激波的速度。
The emission spectrum of nitrogen gas behind normal shock wave at different moments is measured with an optical multichannel analyser . The experimental results reveals that the spectrum gradually evolves from none quilibrium state to equilibrium state after the shock wave passing. Meanwhile, t he spectrum is also related to the shock wave velocity.
出处
《流体力学实验与测量》
EI
CSCD
2000年第3期57-60,65,共5页
Experiments and Measurements in Fluid Mechanics
基金
国家自然科学基金资助项目(19982005)
关键词
激波
激波管
激波速度
氮分子
辐射光谱
shock wave；shock tube；shock wave velocity； nonequilibrium radiation；instantaneous spectrum；nitrogen molecule
