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Journal Article

Influence of slip on the Rayleigh-plateau rim instability in dewetting viscous films


Bäumchen,  Oliver
Group Dynamics of fluid and biological interfaces, Department of Dynamics of Complex Fluids, Max Planck Institute for Dynamics and Self-Organization, Max Planck Society;

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Bäumchen, O., Marquant, L., Blossey, R., Münch, A., Wagner, B., & Jacobs, K. (2014). Influence of slip on the Rayleigh-plateau rim instability in dewetting viscous films. Physical Review Letters, 113(1): 014501. doi:10.1103/PhysRevLett.113.014501.

Cite as: https://hdl.handle.net/11858/00-001M-0000-0029-767A-1
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 a 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 complete evolution of the rim observed in the experiments.