Publication Cover
Numerical Heat Transfer, Part A: Applications
An International Journal of Computation and Methodology
Volume 36, 1999 - Issue 6
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Original Articles

TRANSIENT THREE-DIMENSIONAL FLOW CHARACTERISTICS OF Si MELT IN A CZOCHRALSKI CONFIGURATION UNDER A CUSP-SHAPED MAGNETIC FIELD

Pages 551-561 | Published online: 29 Oct 2010
 

Abstract

Transient three-dimensional numerical computations were carried out for the convection of silicon melt in a Czochralski configuration under a cusp-shaped magnetic field. Numerical conditions are Ha = 0 and 161 with Pr = 0.013, Ra = 3.92 x 10 5, Recr 1329, and Recu = -1596. Computed results show elliptic velocity and temperature profiles near the top of the melt that rotate in a circumferential direction of a crucible even under an axially symmetric cusp-shaped magnetic field at Ha = 161. Elliptic velocity and temperature distributions were stable but oscillating as a function of time. Velocity and temperature oscillation became a rather regular periodic structure under a cusp-shaped magnetic field in comparison with the nonmagnetic case.

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