发表机构
College of Physics, Chengdu University of Technology; Department of Physics, University of Montpellier, CNRS; State Key Laboratory of Geohazard Prevention and Geoenvironment Protection, Chengdu University of Technology; School of Physics and Astronomy, Shanghai Jiao Tong University（成都理工大学物理学院; 蒙彼利埃大学物理系; 成都理工大学地质灾害防治与地质环境国家重点实验室; 上海交通大学物理与天文学院）
机构由 AI 辅助整理，请以论文原文为准。AI 中文总结
本研究通过数值模拟发现，粒子表面粗糙度对硬粒子流体性质的影响可通过引入有效粒径定量描述，从而将粗糙粒子系统映射为硬圆盘系统，并利用标准液态理论预测其静态和动态性质。
AI 中文摘要
我们通过数值模拟研究了粒子表面粗糙度如何影响硬粒子流体在广泛密度ρ范围内的静态和动态性质。这些针对颗粒系统简单模型的模拟揭示，尽管表面波纹的振幅和覆盖率显著影响系统性质对ρ的依赖性，但这种依赖性的定性行为保持不变。这些发现可以通过引入有效粒径来定量描述，从而将粗糙粒子系统直接映射为等效的硬圆盘系统。解析计算提供了该映射的显式形式，使我们能够利用标准的硬圆盘液态理论预测粗糙粒子的静态和动态性质。
英文摘要
We numerically investigate how particle surface roughness affects the static and dynamic properties of a hard-particle fluid across a wide range of densities, rho. These simulations of a simple model of granular systems reveal that, although the amplitude and coverage of surface corrugation significantly influence the rho-dependence of system properties, the qualitative behavior of this dependence remains unchanged. These findings can be described quantitatively by introducing an effective particle size, which enables a direct mapping of the rough particle systems to equivalent hard-disk systems. Analytical calculations provide an explicit form of this mapping, and allow us to predict the static and dynamic properties of rough particles using standard liquid-state theories for hard disks.
