Numerical analysis of the shapes and energies of droplets on micropatterned substrates

TitleNumerical analysis of the shapes and energies of droplets on micropatterned substrates
Publication TypeJournal Article
Year of Publication2006
AuthorsChatain, D, Lewis, D, Baland, JP, Carter, WCraig
JournalLangmuir
Volume22
Issue9
Pagination4237 - 4243
Date Published2006/04/25/
Abstract

The shapes and energies of drops on substrates patterned with either holes or posts are computed using Surface Evolver software. The holes and posts are cylindrical in shape and distributed in a 6-fold symmetric pattern. The wetting conditions are such that the liquid does not fill the holes and the interface between the drop and the substrate is composite, i.e., partly solid/liquid and partly liquid/vapor. The sequence of stable drop configurations with increasing volume is analyzed and provides, in part, an explanation for superhydrophobic drop spreading.