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

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....

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Bibliographic Details
Published in:Journal of fluid mechanics 2001-06, Vol.436, p.131-143
Main Authors: WITKOWSKI, L. MARTIN, MARTY, P., WALKER, J. S.
Format: Article
Language:English
Subjects:
Exact sciences and technology
Fluid dynamics
Fluid mechanics
Fundamental areas of phenomenology (including applications)
Magnetic fields
Magnetohydrodynamics and electrohydrodynamics
Mechanics
Physics
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Summary: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.
ISSN:0022-1120
1469-7645
DOI:10.1017/S0022112001003767