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Accueil du site > Publications > Archives 2004-2010 > 2005 > Droplet traffic at a simple junction at low capillary numbers

Droplet traffic at a simple junction at low capillary numbers

W. Engl, M. Roche, A. Colin, P. Panizza, A. Ajdari — Phys. Rev. Lett. 95 (2005) 208304

20 juin 2005

When a ?train ? of confined droplets flowing through a channel reaches a junction : the droplets either alternately distribute between the different outlets or all collect into the shortest one. We here show that this behavior is due to the hydrodynamic feed-back of drops in the different outlets on the selection process occurring at the junction. A ?mean field ? model, yielding semi quantitative results, offers a first guide to predict droplet traffic in branched networks.

- Publié dans Physical Review Letters

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