Free convection in liquid gallium

Braunsfurth, M.G. and Skeldon, A.C. and Juel, A. and Mullin, T. and Riley, D.S. (1997) Free convection in liquid gallium. Journal of Fluid Mechanics, 342. pp. 295-314. ISSN 0022-1120

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Free convection in liquid metals is of significant practical interest to the crystal-growing community since the adverse effects of convective instabilities in the melt phase can be frozen into the solid product. Here, we present the results of a combined numerical and experimental study of steady convective flows in a sample of liquid gallium which is heated at one end and cooled at the other. Experimental measurements of temperature distributions in the flow are compared with the standard Hadley-cell solution and with the numerical results obtained from a two-dimensional model. Excellent quantitative agreement is found between all three for low Grashof numbers but a systematic divergence between the results is seen as this parameter is increased.

Item Type: Article
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
Depositing User: Ms Lucy van Russelt
Date Deposited: 02 Nov 2007
Last Modified: 20 Oct 2017 14:12

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