MACROSCOPIC AND MESOPHYSICS TOGETHER: THE MOVING CONTACT LINE PROBLEM REVISITED

摘要

This communication reexamines a famous riddle in fluid mechanics: the moving contact line problem. I show that there is a solution for the wedge of a viscous fluid sliding on a solid surface without dropping any basic tenet of the fluid mechanics of viscous fluids. The solution satisfies in particular the balance of normal forces. It can be taken as a starting point for a numerical simulation of 'large' scale motion like a droplet sliding on an incline, without introducing any new scaling parameter.