Equation of motion of the triple contact line along an inhomogeneous surface
ESEME, Service des Basses Températures, DSM/DRFMC,
CEA - Grenoble, France
Corresponding author: email@example.com
Accepted: 9 October 2003
The wetting flows are controlled by the contact line motion. We derive an equation that describes the slow time evolution of the triple solid-liquid-fluid contact line for an arbitrary distribution of defects on a solid surface. The capillary rise along a partially wetted infinite vertical wall is considered. The contact line is assumed to be only slightly deformed by the defects. The derived equation is solved exactly for a simple example of a single defect.
PACS: 68.08.Bc – Wetting / 05.40.-a – Fluctuation phenomena, random processes, noise, and Brownian motion
© EDP Sciences, 2003