Competition between collapse and breakup in nanometer-sized thin rings using molecular dynamics and continuum modeling

Trung Dac Nguyen, Miguel Fuentes-Cabrera, Jason D. Fowlkes, Javier A. Diez, Alejandro G. González, Lou Kondic, Philip D. Rack*

*Corresponding author for this work

Research output: Contribution to journalArticle

24 Scopus citations

Abstract

We consider nanometer-sized fluid annuli (rings) deposited on a solid substrate and ask whether these rings break up into droplets due to the instability of Rayleigh-Plateau-type modified by the presence of the substrate, or collapse to a central drop due to the presence of azimuthal curvature. The analysis is carried out by a combination of atomistic molecular dynamics simulations and a continuum model based on a long-wave limit of Navier-Stokes equations. We find consistent results between the two approaches, and demonstrate characteristic dimension regimes which dictate the assembly dynamics.

Original languageEnglish (US)
Pages (from-to)13960-13967
Number of pages8
JournalLangmuir
Volume28
Issue number39
DOIs
StatePublished - Oct 2 2012

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Surfaces and Interfaces
  • Spectroscopy
  • Electrochemistry

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