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Liquid-metal flow in a finite-length cylinder with a high-frequency rotating magnetic field

Published online by Cambridge University Press:  22 June 2001

L. MARTIN WITKOWSKI ,
P. MARTY  and
J. S. WALKER
L. MARTIN WITKOWSKI
Affiliation:
Department of Mechanical and Industrial Engineering, University of Illinois, 1206 W. Green St., Urbana, IL 61801, USA
P. MARTY
Affiliation:
Laboratoire des Ecoulements Géophysiques et Industriels, B.P. 53, 38041 Grenoble, France
J. S. WALKER
Affiliation:
Department of Mechanical and Industrial Engineering, University of Illinois, 1206 W. Green St., Urbana, IL 61801, USA
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Abstract

A liquid-metal flow driven by a rotating magnetic field in a finite-length cylinder is studied numerically as a function of the field frequency. In the high-frequency case, the magnetic field is expelled from the liquid-metal except in a skin-depth layer along the side and top walls of the cylinder. In the corner region, where the skin-depth layers intersect, the body force exhibits a large positive and negative azimuthal component as well as inward radial and axial components which are rotational. The flows for various frequencies are compared to the low-frequency flow.

Type
Research Article
Information
Journal of Fluid Mechanics , Volume 436 , 10 June 2001 , pp. 131 - 143
Copyright
© 2001 Cambridge University Press

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