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

Sadullah, M.S.; Semprebon, C.; Kusumaatmaja, H.

doi:10.1021/acs.langmuir.8b01660

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

Sadullah, M.S.; Semprebon, C.; Kusumaatmaja, H.

Authors

M.S. Sadullah

C. Semprebon

Professor Halim Kusumaatmaja halim.kusumaatmaja@durham.ac.uk
Professor

Abstract

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.

Citation

Sadullah, M., Semprebon, C., & Kusumaatmaja, H. (2018). Drop Dynamics on Liquid Infused Surfaces: The Role of the Lubricant Ridge. Langmuir, 34(27), 8112-8118. https://doi.org/10.1021/acs.langmuir.8b01660

Journal Article Type	Article
Acceptance Date	Jun 12, 2018
Online Publication Date	Jun 12, 2018
Publication Date	Jul 10, 2018
Deposit Date	Jun 13, 2018
Publicly Available Date	Jun 13, 2018
Journal	Langmuir
Print ISSN	0743-7463
Electronic ISSN	1520-5827
Publisher	American Chemical Society
Peer Reviewed	Peer Reviewed
Volume	34
Issue	27
Pages	8112-8118
DOI	https://doi.org/10.1021/acs.langmuir.8b01660
Related Public URLs	https://arxiv.org/abs/1803.04040

Files

Accepted Journal Article (1.6 Mb)
PDF

Copyright Statement
This document is the Accepted Manuscript version of a Published Work that appeared in final form in Langmuir, copyright © American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see https://doi.org/10.1021/acs.langmuir.8b01660.