CUED Publications database

Fountains in industry and nature

Hunt, GR and Burridge, HC (2015) Fountains in industry and nature. Annual Review of Fluid Mechanics, 47. pp. 195-220. ISSN 0066-4189

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Abstract

Copyright © 2015 by Annual Reviews. All rights reserved. Turbulent fountains arise when a localized flow, free to entrain fluid from its surroundings, is opposed by a buoyancy force. This review cites numerous examples to highlight their wide occurrence in nature and in industry. The breadth of the literature reviewed is significant, drawing from over half a century of progress, and we initially focus on axisymmetric, small density difference fountains in uniform environments. Many aspects of their rich dynamical behavior, including that of their rise heights and fluctuations in height, are described and encapsulated within the fountain classification presented. Drawing from detailed experimental data sets, dimensional considerations, recent numerical studies, and numerous successful extensions to the original theoretical model for a fountain, we implicitly highlight the current predictive capability offered. The turbulent entrainment of ambient fluid, the effects of environmental stratification, and the role of confinement on a fountain are all discussed. Finally, we suggest future avenues of research.

Item Type: Article
Subjects: UNSPECIFIED
Divisions: Div A > Fluid Mechanics
Depositing User: Unnamed user with email sms67@cam.ac.uk
Date Deposited: 17 Jul 2017 19:07
Last Modified: 18 Nov 2017 21:05
DOI: