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Wetting of crossed fibers: Multiple steady states and symmetry breaking

Author(s): Sauret, Alban; Bick, Alison D; Duprat, Camille; Stone, Howard A

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Abstract: We investigate the wetting properties of the simplest element of an array of random fibers: two rigid fibers crossing with an inclination angle and in contact with a droplet of a perfectly wetting liquid. We show experimentally that the liquid adopts different morphologies when the inclination angle is increased: a column shape, a mixed morphology state where a drop lies at the end of a column, or a drop centered at the node. An analytical model is provided that predicts the wetting length as well as the presence of a non-symmetric state in the mixed morphology regime. The model also highlights a symmetry breaking at the transition between the column state and the mixed morphology. The possibility to tune the morphology of the liquid could have important implications for drying processes
Publication Date: 1-Mar-2014
Electronic Publication Date: 19-Mar-2014
Citation: Sauret, Alban, Bick, Alison D, Duprat, Camille, Stone, Howard A. (2014). Wetting of crossed fibers: Multiple steady states and symmetry breaking. EPL (Europhysics Letters), 105 (5), 56006 - 56006. doi:10.1209/0295-5075/105/56006
DOI: doi:10.1209/0295-5075/105/56006
ISSN: 0295-5075
EISSN: 1286-4854
Pages: 56006 - 56006
Type of Material: Journal Article
Journal/Proceeding Title: EPL (Europhysics Letters)
Version: Author's manuscript

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