Analysis of Atomic Electronic Excitation in Nonequilibrium Air Plasmas

被引：0

作者：

何新 ^{[1
]}

党伟华 ^{[2
]}

贾红辉 ^{[1
]}

尹红伟 ^{[1
]}

张海良 ^{[1
]}

常胜利 ^{[1
]}

杨俊才 ^{[1
]}

机构：

[1] Department of Physics,College of Science,National University of Defense Technology

[2] Changsha Commerce and Tourism College

来源：

Chinese Physics Letters | 2014年 / 31卷 / 09期

关键词：

D O I：

暂无

中图分类号：

O53 [等离子体物理学];

学科分类号：

070204 ;

摘要：

Electronic excitation of atoms is studied in nonequilibrium air plasmas with the electronic temperature between 8000 K and 20000 K.By using the modified Saha-Boltzmann equation,our simplified method takes into account significant radiative processes and strong self-absorption of the vacuum ultraviolet lines.Calculations are carried out at three trajectory points of the Fire E flight experiment.Good agreement with the detailed collisional-radiative model is obtained,and the performance of this method in applications to highly nonequilibrium conditions is better than Park's quasi-steady-state model and Spradian-9.0.A short discussion on the influence of optical thickness of the vacuum ultraviolet radiation is also given.It costs about 2.9ms on the average to solve one cell of the shock layer on a low cost computer,which shows that the present method is fast and efficient.

引用

页码：115 / 118

页数：4

共 2 条

[1]

Multi-scale k -distribution model for gas mixtures in hypersonic nonequilibrium flows.[J].Ankit Bansal;M.F. Modest;D.A. Levin.Journal of Quantitative Spectroscopy and Radiative Transfer.2010, 7

[2]

Collisional–radiative modelling of one- and two-temperature air and air-sodium plasmas at atmospheric pressure with temperatures of 2000–12<ce:hsp sp="0.16"/>000<ce:hsp sp="0.25"/>K.[J].P Teulet;J.P Sarrette;A.M Gomes.Journal of Quantitative Spectroscopy and Radiative Transfer.2001, 2

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