| Issue |
La Houille Blanche
Number 5, Octobre 2003
|
|
|---|---|---|
| Page(s) | 116 - 119 | |
| DOI | https://doi.org/10.1051/lhb/2003099 | |
| Published online | 01 July 2009 | |
Glissement hydrodynamique d'un liquide simple à l'interface solide liquide
Influence of the wetting properties on the flow boundary condition at a solid interface
Laboratoire de Physique de la Matière Condensée et Nanostructures (UMR 5586) Université Lyon 1, 43, bd du 11 Novembre 1918, 69622 Villeurbanne Cedex
Abstract
We report here experiments wilh a Dynamic Surface Force Apparatus (DSFA) to investigale the flow boundary condition of glycerol at a solid surface. We use hydrophilic Pyrex surfaces and hydrophobic surfaces made of a Self-Assembled Monolayer of OTS (octadecyltrichlorosilane) on Pyrex. The DSFA allows us to study the flow of a liquid film confined between two surfaces with a nanometer resolution. No-slip boundary conditions are found for glycerol on hydrophilic surfaces only. Significanl slip is found on the hydrophobic surfaces, with a typical length of one hundred nanometers.
© Société Hydrotechnique de France, 2003