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Generic path for droplet relaxation in microfluidic channels.

Author(s): Brun, P-T; Nagel, Mathias; Gallaire, François

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Abstract: In two-phase microfluidics, droplets often undergo deformations that drive them away from their circular equilibrium shape. Herein we concentrate on the relaxation of symmetrical deformations to a circle driven by surface tension effects, which are predominant at the micrometer scales. Working in a Hele-Shaw cell, we report a generic pathway for these types of relaxations. We simulate numerically the interface shape evolution and investigate it using linear stability analysis. Finally, we characterize this universal aspect of relaxation using a purely geometrical model that is tested in experiments.
Publication Date: 22-Oct-2013
Citation: Brun, P-T, Nagel, Mathias, Gallaire, François. (2013). Generic path for droplet relaxation in microfluidic channels.. Physical review. E, Statistical, nonlinear, and soft matter physics, 88 (4), 043009 - ?. doi:10.1103/physreve.88.043009
DOI: doi:10.1103/physreve.88.043009
ISSN: 1539-3755
EISSN: 1550-2376
Pages: 043009 - ?
Language: eng
Type of Material: Journal Article
Journal/Proceeding Title: Physical review. E, Statistical, nonlinear, and soft matter physics
Version: Final published version. Article is made available in OAR by the publisher's permission or policy.



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