Title: Effect of the Rayleigh number on the magnetizing force convection in a cube with cusp-shaped magnetic field

Authors: M. Kaneda, T. Tagawa, H. Ozoe

Addresses: Interdisciplinary Graduate School of Engineering Sciences, Kyushu University, Kasuga koen 6-1, Kasuga 816-8580, Japan. Institute of Advanced Material Study, Kyushu University, Kasuga koen 6-1, Kasuga 816-8580, Japan. Institute of Advanced Material Study, Kyushu University, Kasuga koen 6-1, Kasuga 816-8580, Japan

Abstract: Three-dimensional numerical calculations were carried out to clarify the effect of magnetizing force. A cusp-shaped magnetic field generated by four coils was applied to air (Pr = 0.71) in a cube that was placed in the centre of the surrounding four coils. The cube is heated from the top wall and cooled from the bottom wall both isothermally, and four vertical walls were thermally insulated. In conditions without a magnetic field, thermal conductive states are achieved with and without gravity fields. When a strong magnetic field is applied, convection is induced as the magnetizing force increases.

Keywords: air; buoyancy convection; cubic enclosure; gravity; magnetizing force; Rayleigh number.

DOI: 10.1504/PCFD.2002.003217

Progress in Computational Fluid Dynamics, An International Journal, 2002 Vol.2 No.2/3/4, pp.72 - 79

Published online: 19 Aug 2003 *

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