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

J. Heinio, Kimmo Kaski, D.B. Abraham

Research output: Contribution to journalArticleScientificpeer-review

14 Citations (Scopus)

Abstract

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.
Original languageEnglish
Pages (from-to)4409-4416
JournalPhysical Review B
Volume45
Issue number8
DOIs
Publication statusPublished - 1992
MoE publication typeA1 Journal article-refereed

Fingerprint

Dive into the research topics of 'DYNAMICS OF A MICROSCOPIC DROPLET ON A SOLID-SURFACE - THEORY AND SIMULATION'. Together they form a unique fingerprint.

Cite this