Three-dimensional free convection in molten gallium

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

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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
Additional Information: © 2001 Cambridge University Press
Subjects: PACS 2010, the AIP's Physics and Astronomy Classification Scheme > 40 ELECTROMAGNETISM, OPTICS, ACOUSTICS, HEAT TRANSFER, CLASSICAL MECHANICS, AND FLUID MECHANICS > 47 Fluid dynamics
PACS 2010, the AIP's Physics and Astronomy Classification Scheme > 60 CONDENSED MATTER - STRUCTURAL, MECHANICAL AND THERMAL PROPERTIES > 68 Surfaces and interfaces; thin films and low-dimensional systems (structure and nonelectronic properties)
Depositing User: Ms Lucy van Russelt
Date Deposited: 07 Aug 2006
Last Modified: 20 Oct 2017 14:12

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