计算弱电离气体中低能电子输运的二阶多群模型

IF 1.1 4区物理与天体物理 Q4 PHYSICS, FLUIDS & PLASMAS

Plasma Physics Reports Pub Date : 2025-07-16 DOI:10.1134/S1063780X25602354

E. I. Bochkov

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引用次数: 0

摘要

从电子的玻尔兹曼动力学方程出发，导出了电子分布函数的零阶、一阶和二阶矩的多群方程组。该系统包括电子的浓度、通量密度和动量通量密度平衡方程，用于弱电离冷等离子体中低能电子的输运和动力学的数值模拟。将所建立的多群模型与蒙特卡罗方法的结果进行了比较，验证了该模型的准确性。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Second-Order Multigroup Model for Calculating Low-Energy Electron Transport in Weakly Ionized Gases

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Second-Order Multigroup Model for Calculating Low-Energy Electron Transport in Weakly Ionized Gases

Proceeding from the Boltzmann kinetic equation for electrons, the system of multigroup equations for the zeroth, first and second moments of the electron distribution function is derived. The system includes equations for the balance of concentration, flux density and momentum flux density of electrons, and it is intended for numerical simulations of transport and kinetics of low-energy electrons in weakly ionized cold plasmas. The results of numerical calculations of electron swarm development in a uniform electric field in neon according to the developed multigroup model are compared with the results obtained by the Monte Carlo method to demonstrate the accuracy of the proposed model.

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来源期刊

Plasma Physics Reports 物理-物理：流体与等离子体

CiteScore

1.90

自引率

36.40%

发文量

104

审稿时长

4-8 weeks

期刊介绍： Plasma Physics Reports is a peer reviewed journal devoted to plasma physics. The journal covers the following topics: high-temperature plasma physics related to the problem of controlled nuclear fusion based on magnetic and inertial confinement; physics of cosmic plasma, including magnetosphere plasma, sun and stellar plasma, etc.; gas discharge plasma and plasma generated by laser and particle beams. The journal also publishes papers on such related topics as plasma electronics, generation of radiation in plasma, and plasma diagnostics. As well as other original communications, the journal publishes topical reviews and conference proceedings.