APS » PROLA » Phys. Rev. Lett. » Volume 83 » Issue 6

Phys. Rev. Lett. 83, 1147 - 1150 (1999)

Two Fluid Drop Snap-Off Problem: Experiments and Theory

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Itai Cohen1, Michael P. Brenner2, Jens Eggers3, and Sidney R. Nagel1
1James Franck Institute, University of Chicago, Chicago, Illinois 60637
2Department of Mathematics, MIT, Cambridge, Massachusetts 02139
3Universität Gesamthochschule Essen, Fachbereich Physik, 45117 Essen, Germany

Featured in Phys. Rev. Focus Received 22 February 1999

We address the dynamics of a drop with viscosity λη breaking up inside another fluid of viscosity η. We track the time evolution of the drop near snap-off in the experiments and then compare with a scaling theory developed for λ  =  1. The theory is in excellent agreement with both the experiments and the previous simulations of Lister and Stone. Finally, we also investigate the λ dependence of the drop shape and breaking rate, and develop a simple theory for the latter.


©1999 The American Physical Society

URL: http://link.aps.org/abstract/PRL/v83/p1147
DOI: 10.1103/PhysRevLett.83.1147
PACS: 47.55.Dz, 47.20.Dr

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