par Wylock, Christophe ;Pradas, Marc;Haut, Benoît ;Colinet, Pierre ;Kalliadasis, Serafim
Référence International Conference on Multiscale Complex Fluid Flows and Interfacial Phenomena (MULTIFLOW 2010)(8-10 November 2010: Bruxelles, Belgique), Multiflow Conference 2010
Publication Publié, 2010-11-08
Abstract de conférence
Résumé : We examine the motion of a liquid meniscus and associated contact lines advancing into a two-/threedimensional microchannel with chemically heterogeneous inner walls. Our study is based on a phase field model of the Cahn-Hilliard type, appropriately modified to take into account the interaction between the fluid and the walls. By solving this model numerically, we can characterise the influence of the chemical disorder of the walls on both the interface and contact line dynamics in terms of contact angle hysteresis and pinning/depinning motion.