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Accueil > Publications > Archives 2004-2010 > 2007

Hydrodynamic structures of droplets engineered in rectangular micro-channels

F. Sarrazin, T. Bonometti, L. Prat, C. Gourdon and J. Magnaudet — Microfluidics and Nanofluidics DOI 10.1007/s10404-007-0233-9

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This paper reports on numerical simulations of
the hydrodynamics inside droplets in rectangular microchannels.
Two- and three-dimensional simulations are
performed thanks to a finite-volume/front-capturing
method. Droplet interface deformation and velocity fields
inside both droplets and continuous phase can then be
followed. This study leads to important results about
droplet deformation and inner streamlines for mass and
heat transfer studies. More particularly, the capillary
number seems to have a great influence on the liquid/liquid
flow hydrodynamics and this impact on film thickness and
slip velocity is quantified through correlations.