Modeling of dynamic wetting far from equilibrium
2009 (English)In: Physics of fluids, ISSN 1070-6631, E-ISSN 1089-7666, Vol. 21, no 12Article in journal (Refereed) Published
In this paper we present simulations of dynamic wetting far from equilibrium based on phase field theory. In direct simulations of recent experiments [J. C. Bird, S. Mandre, and H. A. Stone, Phys. Rev. Lett. 100, 234501 (2008)], we show that in order to correctly capture the dynamics of rapid wetting, it is crucial to account for nonequilibrium at the contact line, where the gas, liquid, and solid meet. A term in the boundary condition at the solid surface that naturally arises in the phase field theory is interpreted as allowing for the establishment of a local structure in the immediate vicinity of the contact line. A direct qualitative and quantitative match with experimental data of spontaneously wetting liquid droplets is shown.
Place, publisher, year, edition, pages
2009. Vol. 21, no 12
drops, flow simulation, wetting, contact-line, interface
IdentifiersURN: urn:nbn:se:kth:diva-19088DOI: 10.1063/1.3275853ISI: 000273216700001ScopusID: 2-s2.0-76249091583OAI: oai:DiVA.org:kth-19088DiVA: diva2:337135
QC 201005252010-08-052010-08-052012-03-13Bibliographically approved