Volume 6, 2022
|Number of page(s)||7|
|Published online||15 June 2022|
Spatial distribution of air bubbles created by an imping water jet into a free water surface
Ecole Polytechnique, Route de Saclay, 91120 Palaiseau, France
2 LadHyX, UMR 7646 du CNRS, Ecole Polytechnique, Boulevard des Maréchaux, 91120 Palaiseau, France
3 LOB, UMR 7645 du CNRS, Ecole Polytechnique, Avenue Chasles, 91120 Palaiseau, France
* e-mail: email@example.com
Accepted: 30 September 2021
In this paper we study the rise to the surface, radial motion and disappearance of the bubbles created by a water jet pouring into a container, in particular their density at the surface as a function of the impact velocity. We first focus on their emergence radius at the surface which follows a log-normal distribution. Next, we establish experimentally a law relating the bubble velocity to the distance to the jet. We also investigate their disappearance, caused at low density mainly by explosion, and at high density predominantly by coalescence. Finally, we build an accurate model for the density of bubbles.
Key words: Air Entrainment / plunging Jet / statistical modelling
© A. Bense et al., published by EDP Sciences, 2022
This is an Open Access article distributed under the terms of the Creative Commons Attribution License (https://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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