MSM 99
MSM 99
Technical Proceedings of the 1999 International Conference on Modeling and Simulation of Microsystems

Computational Methods for Microfluidics Chapter 15

Stability Criterion for Microscale Concentric Flow of Two Immiscible Liquids

Authors: L.W. Ho, J. Marchetti and C. Gallegos

Affilation: IntelliSense Corporation, United States

Pages: 530 - 533

Keywords: immiscible, microfluidics, stability, simulation, multifluid

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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