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Moving contact lines in a vapor-liquid system: a singularity-free description in the sole framework of classical physics

par Rednikov, Alexei ;Colinet, Pierre
Référence International Conference on Multiscale Complex Fluid Flows and Interfacial Phenomena (MULTIFLOW 2010) (8-10 novembre 2010: Bruxelles (Belgique))
Publication Non publié, 2010

Communication à un colloque

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Résumé :

We here show that, contrary to preconceptions, no singularities arise for the displacement of a contact line in the system of a liquid, its pure vapor and a solid substrate, even in the absence of "regularizing" microscopic effects such as the disjoining pressure or the slip at the wall. We consider, in the framework of the lubrication theory and a classical one-sided model, a contact line moving at a constant velocity (advancing or receding) and starting abruptly at a (formally) bare solid surface, the micro- contact angle being either equal to zero or finite.