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Physics 4, 65 (2011) Rush hour in a drop of coffee

Summary: Physics 4, 65 (2011)
Rush hour in a drop of coffee
Greg Huber
Center for Cell Analysis & Modeling and Department of Cell Biology, University of Connecticut Health Center, Farmington,
CT 06030, USA and
Department of Physics and Department of Mathematics, University of Connecticut, Storrs, CT 06269,
Published August 15, 2011
The dramatic speed-up of fluid flow in a drying drop of a colloidal suspension controls the pattern
of order and disorder in the particle stain that is left behind.
Subject Areas: Fluid Dynamics, Soft Matter
A Viewpoint on:
Order-to-Disorder Transition in Ring-Shaped Colloidal Stains
Álvaro G. Marín, Hanneke Gelderblom, Detlef Lohse, and Jacco H. Snoeijer
Phys. Rev. Lett. 107, 085502 (2011) ­ Published August 15, 2011
A drop of fluid dries, a pattern forms. Could any-
thing be more mundane? Yet, as technological designs
call for ever smaller devices, understanding how the flow
of a particle-laden fluid could control the deposition of


Source: Al Hanbali, Ahmad - Department of Applied Mathematics, Universiteit Twente


Collections: Engineering