Short time dynamics of water coalescence on a flat water pool

Coalescence is an important hydrodynamic event that frequently takes place in nature as well as in industry. Here we provide an experimental study on short time dynamics of water coalescence, particularly when a water droplet comes in contact with a flat water surface, by utilizing high-resolution h...

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Bibliographic Details
Published inarXiv.org
Main Authors Su Jin Lim, Gim, Bopil, Kamel Fezzaa, Weon, Byung Mook
Format Paper Journal Article
LanguageEnglish
Published Ithaca Cornell University Library, arXiv.org 14.04.2016
Subjects
Coalescing
Curvature
Flat surfaces
Fluid dynamics
Fluid flow
Hydrodynamics
Physics - Fluid Dynamics
Physics - Soft Condensed Matter
Water drops
X ray microscopy
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Summary:Coalescence is an important hydrodynamic event that frequently takes place in nature as well as in industry. Here we provide an experimental study on short time dynamics of water coalescence, particularly when a water droplet comes in contact with a flat water surface, by utilizing high-resolution high-penetration ultrafast X-ray microscopy. Our results demonstrate a possibility that an extreme curvature difference between a drop and a flat surface can significantly modify the hydrodynamics of water coalescence, which is unexpected in the existing theory. We suggest a plausible explanation for why coalescence can be modified by an extreme curvature difference.
ISSN:2331-8422
DOI:10.48550/arxiv.1604.04150