Contact line dynamics

How fast can a liquid drop slide over a solid surface? The maximum speed is strongly limited by the dynamics of the contact line that marks the boundary of ‘wet’ and ‘dry’ surface: viscous friction is extremely large near the contact line where molecules quickly slide over each other. Upon approaching the maximum speed, one encounters a wealth of phenomena such as singularities and instabilities. Besides intrinsic interest, these instabilities of the contact line are of great importance for applications that crucially rely on a perfect control over the liquid domain. An example is shown in the context of Immersion Lithography, a technology developed by ASML Netherlands. We combine experimental and theoretical methods to address both fundamental problems and technological issues of contact line dynamics.

 

Info: Jacco Snoeijer ( j.h.snoeijer@utwente.nl )

Researchers: Jacco Snoeijer, Tak Chan, Koen Winkels.
Collaborators: Jens Eggers (Bristol), Bruno Andreotti (Paris), Laurent Limat (Paris), Michel Riepen (ASML)
Embedding: MESA+, JMBC

Publications

Coexistence of Two Singularities in Dewetting Flows: Regularizing the Corner Tip
I.R. Peters, J.H. Snoeijer, A. Daerr, and L. Limat
Phys. Rev. Lett. 103, 114501 (2009)BibTeΧ
Thick Films of Viscous Fluid Coating a Plate Withdrawn from a Liquid Reservoir
J.H. Snoeijer, J. Ziegler, B. Andreotti, M. Fermigier, and J. Eggers
Phys. Rev. Lett. 100, 244502 (2008)BibTeΧ
Cornered drops and rivulets
J.H. Snoeijer, N. Le Grand-Piteira, L. Limat, H.A. Stone, and J. Eggers
Phys. Fluids 19, 042104 (2007)BibTeΧ


Max Planck Gesellschaft

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