Berlin : Weierstraß-Institut für Angewandte Analysis und Stochastik
Doi
Abstract
A dewetting viscous film develops a characteristic fluid rim at its
receding edge due to mass conservation. In the course of the dewetting
process the rim becomes unstable via an instability of Rayleigh-Plateau type.
An important difference exists between this classic instability of a liquid
column and the rim instability in the thin film as the growth of the rim is
continuously fueled by the receding film. We explain how the development and
macroscopic morphology of the rim instability are controlled by the slip of
the film on the substrate. A single thin-film model captures quantitatively
the characteristics of the evolution of the rim observed in our experiments