复杂等离子体中的涨落对带电尘埃粒子动力学的影响

IF 0.9 4区物理与天体物理 Q4 PHYSICS, FLUIDS & PLASMAS

Plasma Physics Reports Pub Date : 2023-10-07 DOI:10.1134/S1063780X23600949

O. S. Vaulina

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引用次数: 0

摘要

研究了由复杂等离子体中的波动引起的随机力对带电尘埃粒子动力学的影响。在晶粒在两个随机力的作用下移动的情况下，获得了晶粒的动能、速度的自相关函数、传质函数和均方平均位移的解析依赖性。提出了一种计算两种以上性质不同的随机力的方法。讨论了在不等于周围气体温度的情况下，用Langevin方程模拟复杂等离子体中尘粒运动的可能性。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Effect of Fluctuations in Complex Plasmas on the Dynamics of Charged Dust Grains

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Effect of Fluctuations in Complex Plasmas on the Dynamics of Charged Dust Grains

The effect of random forces, which are caused by fluctuations in a complex plasma, on the dynamics of charged dust grains is studied. Analytical dependences are obtained for the kinetic energy, the autocorrelation functions of velocities, the mass transfer functions, and the mean-square average displacements of the grains in the case of a grain moving under the effect of two random forces. A method is proposed for accounting for more than two random forces of different nature. The possibility is discussed of simulating the motion of dust grains in complex plasma by the Langevin equations with a temperature that is not equal to the temperature of the surrounding gas.

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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.