Morphological Transitions of Droplets Wetting Rectangular Domains

Ferraro, Davide, Semprebon, Ciro, Tóth, Tamara, Locatelli, Emanuele, Pierno, Matteo, Mistura, Giampaolo and Brinkmann, Martin (2012) Morphological Transitions of Droplets Wetting Rectangular Domains. Langmuir, 28 (39). pp. 13919-13923. ISSN 0743-7463

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Official URL: http://dx.doi.org/10.1021/la302854t

Abstract

We report the results of comprehensive experiments and numerical calculations of interfacial morphologies of water confined to the hydrophilic top face of rectangular posts of width W = 500 μm and lengths between L = 5W and 30W. A continuous evolution of the interfacial shape from a homogeneous liquid filament to a bulged filament and back is observed during changes in the liquid volume. Above a certain threshold length of L* = 16.0W, the transition between the two morphologies is discontinuous and a bistability of interfacial shapes is observed in a certain interval of the reduced liquid volume V/W3.

Item Type: Article
Subjects: F300 Physics
Department: Faculties > Engineering and Environment > Mathematics, Physics and Electrical Engineering
Depositing User: Becky Skoyles
Date Deposited: 22 May 2018 16:29
Last Modified: 22 May 2018 16:29
URI: http://nrl.northumbria.ac.uk/id/eprint/34329

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