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Conductances between confined rough walls

Plouraboué, Franck and Geoffroy, Sandrine and Prat, Marc Conductances between confined rough walls. (2004) Physics of Fluids, vol. 16 (n° 3). pp. 615-624. ISSN 1070-6631

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Official URL: http://dx.doi.org/10.1063/1.1644152

Abstract

Two- and three-dimensional creeping flows and diffusion transport through constricted and possibly rough surfaces are studied. Asymptotic expansions of conductances are derived as functions of the constriction local geometry. The validity range of the proposed theoretical approximations is explored through a comparison either with available exact results for specific two-dimensional aperture fields or with direct numerical computations for general three-dimensional geometries. The large validity range of the analytical expressions proposed for the hydraulic conductivity (and to a lesser extent for the electrical conductivity) opens up interesting perspectives for the simulation of flows in highly complicated geometries with a large number of constrictions.

Item Type:Article
Additional Information:Thanks to American Institute of Physics editor. The original PDF is available at http://pof.aip.org/
Audience (journal):International peer-reviewed journal
Uncontrolled Keywords:
Institution:French research institutions > Centre National de la Recherche Scientifique - CNRS
Université de Toulouse > Institut National Polytechnique de Toulouse - INPT
Université de Toulouse > Université Paul Sabatier-Toulouse III - UPS
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Deposited By: Franck PLOURABOUE

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