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2006.244: Three-dimensional free convection in molten gallium

2006.244: A. Juel, T. Mullin, H. Ben Hadid and D. Henry (2001) Three-dimensional free convection in molten gallium. Journal of Fluid Mechanics, 436. pp. 267-281. ISSN 0022-1120

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DOI: 10.1017/S0022112001003937

Abstract

Convective flow of molten gallium is studied in a small-aspect-ratio rectangular, differentially heated enclosure. The three-dimensional nature of the steady flow is clearly demonstrated by quantitative comparison between experimental temperature measurements, which give an indication of the strength of the convective flow, and the results of numerical simulations. The three-dimensional flow structure is characterized by cross-flows which are an order of magnitude smaller than the main circulation, and spread from the endwall regions to the entire enclosure when the Grashof number is increased beyond Gr = 104. The mergence of these effects in the centre of the enclosure leads to a complex central divergent flow structure which underpins the observed transition to oscillatory convection.

Item Type:Article
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© 2001 Cambridge University Press

Subjects:PACS 2003 > 47 Fluid dynamics
PACS 2003 > 68 Surfaces and interfaces; thin films and low-dimensional systems (structure and nonelectronic properties)
MIMS number:2006.244
Deposited By:Ms Lucy van Russelt
Deposited On:07 August 2006

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