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Wicking in a powder.

Raux, PS, Cockenpot, H, Ramaioli, M, Quéré, D and Clanet, C (2013) Wicking in a powder. Langmuir, 29 (11). pp. 3636-3644.

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Abstract

We investigate the wicking in granular media by considering layers of grains at the surface of a liquid and discuss the critical contact angle below which spontaneous impregnation takes place. This angle is found to be on the order of 55° for monodisperse layers, significantly smaller than 90°, the threshold value for penetrating assemblies of tubes. Owing to geometry, impregnating grains is more demanding than impregnating tubes. We also consider the additional effects of polydispersity and pressure on this wetting transition and discuss the corresponding shift observed for the critical contact angle.

Item Type: Article
Divisions : Faculty of Engineering and Physical Sciences > Chemical and Process Engineering
Authors :
AuthorsEmailORCID
Raux, PSUNSPECIFIEDUNSPECIFIED
Cockenpot, HUNSPECIFIEDUNSPECIFIED
Ramaioli, MUNSPECIFIEDUNSPECIFIED
Quéré, DUNSPECIFIEDUNSPECIFIED
Clanet, CUNSPECIFIEDUNSPECIFIED
Date : 19 March 2013
Identification Number : 10.1021/la400015v
Copyright Disclaimer : This is the arXiv version of the paper. This document is the unedited Author’s version of a Submitted Work that was subsequently accepted for publication in Langmuir, copyright © American Chemical Society after peer review. To access the final edited and published work see http://dx.doi.org/10.1021/la400015v.
Uncontrolled Keywords : Electricity, Hydrodynamics, Powders, Surface Properties
Related URLs :
Additional Information : This is the arXiv version of the paper. This document is the unedited Author’s version of a Submitted Work that was subsequently accepted for publication in Langmuir, copyright © American Chemical Society after peer review. To access the final edited and published work see http://dx.doi.org/10.1021/la400015v.
Depositing User : Symplectic Elements
Date Deposited : 01 Mar 2016 15:42
Last Modified : 01 Mar 2016 15:42
URI: http://epubs.surrey.ac.uk/id/eprint/809930

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