Magnetohydrodynamic damping of convective flows in molten gallium

Hof, B. and Juel, A. and Mullin, T. (2003) Magnetohydrodynamic damping of convective flows in molten gallium. Journal of Fluid Mechanics, 482. pp. 163-179. ISSN 0022-1120

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Abstract

We report the results of an experimental study of magnetohydrodynamic damping of sidewall convection in a rectangular enclosure filled with gallium. In particular we investigate the suppression of convection when a steady magnetic field is applied separately in each of the three principal directions of the flow. The strongest damping of the steady flow is found for a vertical magnetic field, which is in agreement with theory. However, we observe that the application of a field transverse to the flow provides greater damping than a longitudinal one, which seems to contradict available theory. We provide a possible resolution of this apparent dichotomy in terms of the length scale of the experiment.

Item Type: Article
Additional Information: © 2003 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
URI: http://eprints.maths.manchester.ac.uk/id/eprint/443

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