Drop Dynamics on Liquid-Infused Surfaces: The Role of the Lubricant Ridge

Muhammad S. Sadullah, Ciro Semprebon, Halim Kusumaatmaja

Research output: Contribution to journalArticlepeer-review

47 Scopus citations


We employ a free-energy lattice-Boltzmann method to study the dynamics of a ternary fluid system consisting of a liquid drop driven by a body force across a regularly textured substrate, infused by a lubricating liquid. We focus on the case of partial wetting lubricants and observe a rich interplay between contact line pinning and viscous dissipation at the lubricant ridge, which become dominant at large and small apparent angles, respectively. Our numerical investigations further demonstrate that the relative importance of viscous dissipation at the lubricant ridge depends on the drop to lubricant viscosity ratio, as well as on the shape of the wetting ridge.
Original languageEnglish (US)
Pages (from-to)8112-8118
Number of pages7
Issue number27
StatePublished - Jul 10 2018
Externally publishedYes

Bibliographical note

Generated from Scopus record by KAUST IRTS on 2023-10-23

ASJC Scopus subject areas

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


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