摘要
利用 Lennard-Jones 分子相互作用模型模拟气体分子在重力场中的分布,展现分子运动的过程和分布形态,说明重力场中分子分布由分子间频繁的碰撞所决定而与分子速率和位置的初态分布无关,“零势能”处的数密度 n_0也并非常数,它不仅与分子质量 m 有关,而且还与温度 T 有关。此外,模拟也揭示了玻尔兹曼分布律是对大量粒子而言的统计规律。
The paper introduces an experiment which displags the moving process and distribution morphology of molecales by using Lennard - soues model to analogize the distribution of gas molecules in gravity field. The experiment indicates that the distribution of mdecules in gravity field is determined by frequent collision of molecules, instead of molecule race and initial state distribution of molecules＇ positions.The figure density no is not a constant,which is related not only to molecule mass “ m” , but also totemperature“T”. In addition, the analogy reveals that boltzmann distribution is s statical regulation concerning massive particles.
出处
《大学物理实验》
2005年第4期75-78,共4页
Physical Experiment of College
