Molecular Dynamics Study on Transition of Hard-Sphere System from 2D to 3D

Abstract

Hard-sphere system has been studied extensively in the past decades as a fundamental model to study solid and fluid systems behavior. In this study we utilize molecular dynamics to observe 2D hard-sphere system behavior. Instead of employing a common approach in 2D hard-sphere system study, where a monolayer of hard-sphere confined between rigid walls, we introduced a unique approach to observe the dimensional characteristic changes on hard-sphere system. We examined system thermodynamic properties in tensor form, distribution changes in transversal and lateral pressure indicates the transitions of the system. We found that the characteristics changes happens when the system height is around 10% of the sphere diameter, beyond this point the system behaves as a 3D hard-sphere system.