The use of time-dependent magnetic fields for control of convective flows in melt growth configurations

Authors
Fischer, B Friedrich, J Weimann, H Muller, G
Citation
B. Fischer et al., The use of time-dependent magnetic fields for control of convective flows in melt growth configurations, J CRYST GR, 199, 1999, pp. 170-175
Citations number
14
Categorie Soggetti
Physical Chemistry/Chemical Physics
Journal title
JOURNAL OF CRYSTAL GROWTH
ISSN journal
00220248 → ACNP
Volume
199
Year of publication
1999
Part
1
Pages
170 - 175
Database
ISI
SICI code
0022-0248(199903)199:<170:TUOTMF>2.0.ZU;2-9
Abstract
The influence of a rotating magnetic field on buoyancy driven convection in a Rayleigh-Bernard configuration (vertical cylinder) and on Marangoni conv ection in a Boating zone configuration was investigated experimentally and numerically. The main result of our study is that temperature fluctuations caused by time-dependent buoyancy and Marangoni convection can be damped by using a rotating magnetic field with relatively small held strength. (C) 1 999 Elsevier Science B.V. All rights reserved.