title: Spatiotemporal evolution of thin liquid films during impact of water bubbles on glass on a micrometer to nanometer scale.
abstract: Collisions between millimeter-size bubbles in water against a glass plate are studied using high-speed video. Bubble trajectory and shape are tracked simultaneously with laser interferometry between the glass and bubble surfaces that monitors spatial-temporal evolution of the trapped water film. Initial bubble bounces and the final attachment of the bubble to the surface have been quantified. While the global Reynolds number is large (∼10(2)), the film Reynolds number remains small and permits analysis with lubrication theory with tangentially immobile boundary condition at the air-water interface. Accurate predictions of dimple formation and subsequent film drainage are obtained.
authors.affiliation: Physics of Fluids, University of Twente, P. O. Box 217, 7500 AE Enschede, The Netherlands.
authors.forename: Maurice H W
authors.initials: MH
authors.lastname: Hendrix
authors.forename: Rogerio
authors.initials: R
authors.lastname: Manica
authors.forename: Evert
authors.initials: E
authors.lastname: Klaseboer
authors.forename: Derek Y C
authors.initials: DY
authors.lastname: Chan
authors.forename: Claus-Dieter
authors.initials: CD
authors.lastname: Ohl