Abstract

The energy exchange processes are studied in the systems of non-identical interacting particles (with different sizes, masses, and charges) with the spatially inhomogeneous distribution of the stochastic kinetic energy sources. To analyze the energy balance in such systems, a theoretical model is considered. The analytical relations are presented that describe the redistribution of the stochastic kinetic energy between two charged particles. The relations proposed are verified by means of simulating numerically the problem for particles with the Coulomb interaction between them. The numerical analysis is performed of the process of the stochastic kinetic energy redistribution in the two-dimensional ensembles with the separated fractions of particles with different sizes and temperatures. The results of this work can be applied to the systems with any type of pair interaction. They can be also used for analyzing the energy exchange processes in inhomogeneous systems that are of interest in plasma physics and in physics of polymers and colloid systems.

中文翻译：

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非完全带电粒子团中随机动能的重新分布

摘要

在具有随机动能源的空间不均匀分布的不相同相互作用粒子（具有不同大小，质量和电荷）的系统中研究了能量交换过程。为了分析此类系统中的能量平衡，需要考虑一个理论模型。提出了描述两个带电粒子之间随机动能的重新分布的解析关系。通过数值模拟颗粒之间具有库仑相互作用的问题，可以验证所提出的关系。对二维集合中具有不同尺寸和温度的颗粒分离部分的随机动能重新分布过程进行了数值分析。这项工作的结果可以应用于具有任何类型的配对交互的系统。它们还可以用于分析非均质系统中的能量交换过程，这在等离子体物理学以及聚合物和胶体系统的物理学中很重要。