DYNAMICS OF A MICROSCOPIC DROPLET ON A SOLID-SURFACE - THEORY AND SIMULATION

被引：15

作者：

HEINIO, J ^{[1
]}

KASKI, K ^{[1
]}

ABRAHAM, DB ^{[1
]}

机构：

[1] UNIV OXFORD,DEPT THEORET PHYS,OXFORD OX1 3NP,ENGLAND

来源：

PHYSICAL REVIEW B | 1992年 / 45卷 / 08期

关键词：

D O I：

10.1103/PhysRevB.45.4409

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Spreading of a viscous fluid droplet on a solid surface is studied using a horizontal solid-on-solid model, with Langevin theory for the two-dimensional case and the Monte Carlo method for the two- and three-dimensional cases. The substrate interaction with the droplet is described first with one-monolayer-range chemical potential and second with a long-range van der Waals-type potential. Partial- and complete-wetting regimes have been studied by investigating dynamic droplet profiles, spreading speed, contact angle, and their characteristic time behaviors. The change from partial to complete wetting happens when the total interaction of the substrate with the droplet exceeds the interatomic interaction between fluid particles. The thickness and speed of the precursor film depend on the value and range of the substrate potential.

引用

页码：4409 / 4416

页数：8

共 17 条

[1] LANGEVIN DYNAMICS OF AN INTERFACE NEAR A WALL [J].