Radiation Characteristics of Shock-Heated Air in the Visible and Infrared Spectral Ranges

IF 1 4区 工程技术 Q4 MECHANICS
P. V. Kozlov, I. E. Zabelinskii, N. G. Bykova, G. Ya. Gerasimov, V. Yu. Levashov
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引用次数: 0

Abstract

The integral and temporal spectral characteristics of shock-heated air are measured in the shock wave velocity range from 7.35 to 10.4 km/s at the pressure ahead of the shock front p0 = 0.25 Torr. The experiments are carried out on the DDST-M shock-wave setup of the Institute of Mechanics of Moscow State University. The radiation wave range λ = 600–1100 nm is studied; it corresponds to the visible and near infrared spectral ranges, where the main contribution to the radiation is made by the atomic lines of nitrogen and oxygen. The integral-in-time radiation spectrograms obtained in the experiments are analyzed. The distinctive features of the time oscillograms are defined for the most typical atomic lines of the spectrum. The measurement data are compared with the experimental data of other authors.

Abstract Image

冲击加热空气在可见光谱和红外光谱范围内的辐射特性
在冲击波速度7.35至10.4km/s的范围内,在冲击前沿p0=0.25Torr之前的压力下,测量了冲击加热空气的积分和时间光谱特性。实验在莫斯科国立大学力学研究所DDST-M冲击波装置上进行。研究了辐射波范围λ=600~1100nm;它对应于可见光和近红外光谱范围,其中氮和氧的原子线对辐射的主要贡献。对实验中得到的时间积分辐射谱图进行了分析。时间波形图的独特特征是为光谱中最典型的原子线定义的。将测量数据与其他作者的实验数据进行了比较。
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来源期刊
Fluid Dynamics
Fluid Dynamics MECHANICS-PHYSICS, FLUIDS & PLASMAS
CiteScore
1.30
自引率
22.20%
发文量
61
审稿时长
6-12 weeks
期刊介绍: Fluid Dynamics is an international peer reviewed journal that publishes theoretical, computational, and experimental research on aeromechanics, hydrodynamics, plasma dynamics, underground hydrodynamics, and biomechanics of continuous media. Special attention is given to new trends developing at the leading edge of science, such as theory and application of multi-phase flows, chemically reactive flows, liquid and gas flows in electromagnetic fields, new hydrodynamical methods of increasing oil output, new approaches to the description of turbulent flows, etc.
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