Spatiotemporal evolution of thin liquid films during impact of water bubbles on glass on a micrometer to nanometer scale

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Title: Spatiotemporal evolution of thin liquid films during impact of water bubbles on glass on a micrometer to nanometer scale
Author(s): Hendrix, Maurice H. W.; Manica, Rogerio; Klaseboer, Evert; Chan, Derek Y. C.; Ohl, Claus-Dieter
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 (∼102), 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.
Publication type: Journal article
Research centre: Swinburne University of Technology. Faculty of Life and Social Sciences
Source: Physical Review Letters, Vol. 108, no. 24 (Jun 2012), article no. 247803
Publication year: 2012
FOR Code(s): 02 Physical Sciences
Keyword(s): Collisions; Glass surface; Reynolds number; Spatiotemporal evolution; Water bubbles
Publisher: American Physical Society
ISSN: 0031-9007
Publisher URL: http://dx.doi.org/10.1103/PhysRevLett.108.247803
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