NUMERICAL EVALUATION OF PULSED-FIELD MAGNETIZATION OF A BULK HIGH T-CSUPERCONDUCTOR

Authors
TSUCHIMOTO M WAKI H ITOH Y YANAGI Y YOSHIKAWA M OKA T YAMADA Y MIZUTANI U
Citation
M. Tsuchimoto et al., NUMERICAL EVALUATION OF PULSED-FIELD MAGNETIZATION OF A BULK HIGH T-CSUPERCONDUCTOR, Cryogenics, 37(1), 1997, pp. 43-47
Citations number
17
Categorie Soggetti
Physics, Applied",Thermodynamics
Journal title
Cryogenics → ACNP
ISSN journal
00112275
Volume
37
Issue
1
Year of publication
1997
Pages
43 - 47
Database
ISI
SICI code
0011-2275(1997)37:1<43:NEOPMO>2.0.ZU;2-G
Abstract
Pulsed field-magnetization process of a bulk high T-c superconductor ( HTS) is analysed by using a macroscopic numerical simulation code. The non-linear dependence of shielding current on a dynamic magnetic fiel d is evaluated with the Kim model and the flux flow-creep model. in th e present macroscopic simulation, local heat generation in the HTS is roughly estimated with macroscopic values. Reported experimental resul ts are explained by the decrease of the shielding current caused by th e local heat generation. The effects of the local heat generation are discussed to clarify the dynamic magnetization process. (C) 1996 Elsev ier Science Limited.