Temporal Variation of Non-Ideal Plumes with Sudden Reductions in Buoyancy Flux

Scase, M. M. and Caulfield, C. P. and Dalziel, S. B. (2008) Temporal Variation of Non-Ideal Plumes with Sudden Reductions in Buoyancy Flux. Journal of Fluid Mechanics, 600. pp. 181-199. DOI https://doi.org/10.1017/S0022112008000487

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Abstract

We model the behaviour of isolated sources of finite radius and volume flux which experience a sudden drop in buoyancy flux, generalizing the previous theory presented in Scase et al. (J. Fluid Mech., vol. 563, 2006, p. 443). In particular, we consider the problem of the source of an established plume suddenly increasing in area to provide a much wider plume source. Our calculations predict that, while our model remains applicable, the plume never fully pinches off into individual rising thermals.

Item Type:	Article
Uncontrolled Keywords:	BPI
Subjects:	99 - Other 02 - Geodynamics, Geophysics and Tectonics
Divisions:	02 - Geodynamics, Geophysics and Tectonics
Journal or Publication Title:	Journal of Fluid Mechanics
Volume:	600
Page Range:	pp. 181-199
Identification Number:	https://doi.org/10.1017/S0022112008000487
Depositing User:	Sarah Humbert
Date Deposited:	19 Jul 2010 16:32
Last Modified:	23 Jul 2013 09:57
URI:	http://eprints.esc.cam.ac.uk/id/eprint/1469

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