基于事件的能量等分收敛分析

Pub Date : 2024-03-01 DOI:10.1119/5.0142173

Arnaldo Spalvieri

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引用次数: 0

摘要

本文对经典理想单原子稀薄气体从非平衡态到平衡态的动能空间分布瞬态进行了简单而严谨的分析。所提出的方法是基于事件的，即系统的演化是作为给定时间间隔内碰撞的随机数量的函数来分析的。论文采用了一个非常简单但现实的碰撞模型，表明原子间的碰撞会以指数方式导致能量均衡。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Event-based analysis of convergence to energy equipartition

The paper presents a simple yet rigorous analysis of the transient of the spatial distribution of the kinetic energy of a classical ideal monoatomic dilute gas that passes from non-equilibrium to equilibrium. The proposed approach is event-based, in the sense that the evolution of the system is analyzed as a function of the random number of collisions in a given time interval. Taking a very simple yet realistic model of collision, the paper shows that collisions between atoms lead exponentially to energy equipartition.

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