Spectral Model for Calculation of Radiation Characteristics of a Shock-Heated Gas

IF 1.4 4区 化学 Q4 PHYSICS, ATOMIC, MOLECULAR & CHEMICAL Russian Journal of Physical Chemistry B Pub Date : 2024-07-22 DOI:10.1134/s1990793124700222
N. G. Bykova, A. L. Kusov, P. V. Kozlov, G. Ya. Gerasimov, V. Yu. Levashov, I. E. Zabelinsky
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Abstract

An extended version of the previously developed computational procedure SPECTRUM is presented, which allows us to calculate the radiation characteristics of a shock-heated gas, taking into account the decrease in the radiation intensity in an absorbing medium. The procedure is based on a line-by-line calculation of the emission and absorption spectra of the atoms and molecules that make up the studied gas mixture. When calculating the emission spectra of atoms and molecules, the values of spectroscopic constants are taken from well-known databases. The results of calculating the time-integrated spectral characteristics of shock-heated air are compared with the available experimental data obtained in the ultraviolet, visible, and infrared regions of the spectrum.

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用于计算冲击加热气体辐射特性的光谱模型
摘要 本文介绍了之前开发的计算程序 SPECTRUM 的扩展版本,它允许我们计算冲击加热气体的辐射特性,同时考虑到吸收介质中辐射强度的降低。该程序基于对构成所研究气体混合物的原子和分子的发射和吸收光谱的逐行计算。在计算原子和分子的发射光谱时,光谱常数的值取自著名的数据库。震荡加热空气的时间积分光谱特性计算结果与紫外线、可见光和红外线光谱区域的现有实验数据进行了比较。
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来源期刊
Russian Journal of Physical Chemistry B
Russian Journal of Physical Chemistry B 化学-物理:原子、分子和化学物理
CiteScore
2.20
自引率
71.40%
发文量
106
审稿时长
4-8 weeks
期刊介绍: Russian Journal of Physical Chemistry B: Focus on Physics is a journal that publishes studies in the following areas: elementary physical and chemical processes; structure of chemical compounds, reactivity, effect of external field and environment on chemical transformations; molecular dynamics and molecular organization; dynamics and kinetics of photoand radiation-induced processes; mechanism of chemical reactions in gas and condensed phases and at interfaces; chain and thermal processes of ignition, combustion and detonation in gases, two-phase and condensed systems; shock waves; new physical methods of examining chemical reactions; and biological processes in chemical physics.
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