Galeano-Rios, CA;
Milewski, PA;
Vanden-Broeck, JM;
(2017)
Non-wetting impact of a sphere onto a bath and its application to bouncing droplets.
Journal of Fluid Mechanics
, 826
pp. 97-127.
10.1017/jfm.2017.424.
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Abstract
We present a fully predictive model for the impact of a smooth, convex and perfectly hydrophobic solid onto the free surface of an incompressible fluid bath of infinite depth in a regime where surface tension is important. During impact, we impose natural kinematic constraints along the portion of the fluid interface that is pressed by the solid. This provides a mechanism for the generation of linear surface waves and simultaneously yields the pressure applied on the impacting masses. The model compares remarkably well with data of the impact of spheres and bouncing droplet experiments, and is completely free of any of impact parametrisation.
| Type: | Article |
|---|---|
| Title: | Non-wetting impact of a sphere onto a bath and its application to bouncing droplets |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1017/jfm.2017.424 |
| Publisher version: | https://doi.org/10.1017/jfm.2017.424 |
| Language: | English |
| Additional information: | Copyright © 2017 Cambridge University Press. This is an Open Access article, distributed under the terms of the Creative Commons Attribution licence (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted re-use, distribution, and reproduction in any medium, provided the original work is properly cited. |
| Keywords: | capillary waves, drops, wave–structure interactions |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Mathematics |
| URI: | https://discovery.ucl.ac.uk/id/eprint/10036200 |
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