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2006.241: Magnetohydrodynamic damping of convective flows in molten gallium

2006.241: B. Hof, A. Juel and T. Mullin (2003) Magnetohydrodynamic damping of convective flows in molten gallium. Journal of Fluid Mechanics, 482. pp. 163-179. ISSN 0022-1120

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DOI: 10.1017/S0022112003004014

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 2003 > 47 Fluid dynamics
PACS 2003 > 68 Surfaces and interfaces; thin films and low-dimensional systems (structure and nonelectronic properties)
MIMS number:2006.241
Deposited By:Ms Lucy van Russelt
Deposited On:07 August 2006

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