[1]张华龙,黄朝艳,卜淑平. 基于Boltzmann方程的TLEs电子分布特性研究[J].计算机技术与发展,2015,25(09):204-208.
　ZHANG Hua-long,HUANG Chao-yan,BU Shu-ping. Research on Characteristics of Electron Energy Distribution Function of TLEs Based on Boltzmann Equation[J].,2015,25(09):204-208.
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 基于Boltzmann方程的TLEs电子分布特性研究()
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《计算机技术与发展》[ISSN:1006-6977/CN:61-1281/TN]

卷:
25
期数:
2015年09期
页码:
204-208
栏目:
应用开发研究
出版日期:
2015-09-10

文章信息/Info

Title:
 Research on Characteristics of Electron Energy Distribution Function of TLEs Based on Boltzmann Equation
文章编号:
1673-629X（2015)09-0204-05
作者:
 张华龙; 黄朝艳; 卜淑平
 南京航空航天大学 航天学院
Author(s):
 ZHANG Hua-long; HUANG Chao-yan; BU Shu-ping
关键词:
 ; 中高层大气瞬态发光事件; 玻尔兹曼方程; 电子能量分布函数; 影响参数
Keywords:
 ; TLEs; Boltzmann transport equation; electron energy distribution function; influencing parameters
分类号:
TP39
文献标志码:
A
摘要:
 中高层大气瞬态发光事件( TLEs)是临近空间研究的热点课题,研究TLEs的辐射特性、扰动电子密度等问题的关键在于求解电子能量分布函数( EEDF)。文中基于玻尔兹曼方程数值模型,求解得到了TLEs中气体随时间变化的EEDF；结合唯一变量法,获得了求解过程中的时间步长(δt )、电子能量网格间隔(△ε)、约化电场( E/N)、大气压强( P)、大气温度( tgas )、麦克斯韦分布初始电子平均能量( tel )等对EEDF的影响及其规律；提出了如何在实际复杂环境、变化电场的情况下,利用Boltzmann方程数值模型,并运用这些规律来求解TLEs中气体EEDF,以得到更加准确的结果。
Abstract:
 Transient Luminous Events ( TLEs) in the upper atmosphere is a focus of near space,to solve the Electron Energy Distribution Function (EEDF) is the key to research the TLEs’ problems of the radiation characteristics,the disturbed electron density and so on. Based on the numerical model of Boltzmann equation,the time evolution of the EEDF is calculated;combined with the only variable prin-ciple,found that many parameters,such as the time step ( δt ) ,the grid interval of electronic energy ( △ε) ,reduced electric field ( E/N) , atmospheric pressure ( P ) ,atmospheric temperature ( tgas ) and initial electric average energy of Maxwell distribution ( tel ) ,have influenced on EEDF and its regularity. Under the complicated environment and the changing electric field in the actual in order,how to solve the EEDF of the gases in TLEs to get more accurate result using the numerical model of Boltzmann equation are identified.

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更新日期/Last Update: 2015-10-16