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A Molecular Dynamics Simulation Study of Nanoscale Liquid Threads

机译:纳米级液体线的分子动力学模拟研究

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摘要

The properties of liquid threads in angular direction are studied. On the basis of Gibbs theory, a thermodynamic model is constructed and a formula of surface of tension is derived. For the determination of surface tension, different methods are presented. We investigate seven different systems (the numbers of molecules N are 1600, 2240, 2880, 3360, 4000, 4800, and 5280) by molecular dynamics simulations. We analyze the surface tension obtained by various routes, then whether the classical Laplace equation is applicable in nanoscale can be determined. The results obtained by molecular dynamics simulations support that surface tension is dependent on the dividing surface curvature.
机译:研究了液体线在角度方向上的特性。在吉布斯理论的基础上,建立了热力学模型,推导了张紧面的公式。为了确定表面张力,提出了不同的方法。我们通过分子动力学模拟研究了七个不同的系统(分子数N分别为1600、2240、2880、3360、4000、4800和5280)。我们分析了通过各种途径获得的表面张力,然后可以确定经典的拉普拉斯方程是否适用于纳米尺度。通过分子动力学模拟获得的结果支持表面张力取决于划分的表面曲率。

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