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Drop size control in electro-coflow

Authors :
Venkata R. Gundabala
Neus Vilanova
Alberto Fernandez-Nieves
Source :
Applied Physics Letters. 99:021910
Publication Year :
2011
Publisher :
AIP Publishing, 2011.

Abstract

We introduce electro-coflow as a way to generate emulsion drops with an average size that can be larger, comparable, and smaller than the smallest geometric feature of the device. The method relies on using three immiscible liquids, two of them having a finite electrical conductivity. There are three regimes of operation that allow the steady generation of drops: dripping, electro-dripping, and an electrically dominated regime. We transit from one to the other by increasing the applied voltage and describe the changes in drop size by balancing the relevant forces in each regime.

Details

ISSN :
10773118 and 00036951
Volume :
99
Database :
OpenAIRE
Journal :
Applied Physics Letters
Accession number :
edsair.doi...........1725ecb9a34cc5f9f17752377ea3a678
Full Text :
https://doi.org/10.1063/1.3610949