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.