Nano Science and Technology Institute
MSM 99
MSM 99
Technical Proceedings of the 1999 International Conference on Modeling and Simulation of Microsystems
 
Chapter 15: Computational Methods for Microfluidics
 

Stability Criterion for Microscale Concentric Flow of Two Immiscible Liquids

Authors:L.W. Ho, J. Marchetti and C. Gallegos
Affilation:IntelliSense Corporation, US
Pages:530 - 533
Keywords:immiscible, microfluidics, stability, simulation, multifluid
Abstract:This paper addresses the establishment of a stability criterion for isothermal laminar concentric flow of two immiscible liquids. Using the approach of combined non-dimensional group anlysis and numerical simulations, it is established that the inner core liquid will be stable and maintain a thread like configuration if the capillary number exceeds unity, but it will be unstable and break up into droplets if the capillary number is below unity.
ISBN:0-9666135-4-6
Pages:697
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