Published in

American Institute of Physics, Physics of Fluids, 4(19), p. 043603, 2007

DOI: 10.1063/1.2716438

Links

Tools

Export citation

Search in Google Scholar

A note on the effective slip properties for microchannel flows with ultrahydrophobic surfaces

Journal article published in 2007 by M. Sbragaglia, A. Prosperetti ORCID
This paper is available in a repository.
This paper is available in a repository.

Full text: Download

Green circle
Preprint: archiving allowed
Upload
Green circle
Postprint: archiving allowed
Upload
Orange circle
Published version: archiving restricted
Upload
Policy details
Data provided by SHERPA/RoMEO

Abstract

A type of super-hydrophobic surface consists of a solid plane boundary with an array of grooves which, due to the effect of surface tension, prevent a complete wetting of the wall. The effect is greatest when the grooves are aligned with the flow. The pressure difference between the liquid and the gas in the grooves causes a curvature of the liquid surface resisted by surface tension. The effects of this surface deformation are studied in this paper. The corrections to the effective slip length produced by the curvature are analyzed theoretically and a comparison with available data and related mathematical models is presented. ; Comment: 19 pages, 5 figures