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Comparison of theory-based and semi-empirical transport modelling in JET plasmas with ITBs

被引：20
作者：
Tala, TJJ
Parail, VV
Becoulet, A
Corrigan, G
Heading, DJ
Mantsinen, MJ
Strand, PI
机构：
[1] VTT Proc, Assoc Euratom Tekes, FIN-02044 Espoo, Finland
[2] Euratom UKAEA Fusion Assoc, Culham Sci Ctr, Abingdon OX14 3DB, Oxon, England
[3] CEA Cadarache, EURATOM Assoc CEA, F-13108 St Paul Les Durance, France
[4] Helsinki Univ Technol, EURATOM Assoc Tekes, FIN-02015 Helsinki, Finland
[5] Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA
来源：
PLASMA PHYSICS AND CONTROLLED FUSION | 2002年 / 44卷
关键词：
D O I：
10.1088/0741-3335/44/5A/355
中图分类号：
O35 [流体力学]; O53 [等离子体物理学];
学科分类号：
070204 ; 080103 ; 080704 ;
摘要：
The theory-based Weiland transport model has been applied to JET discharges with internal transport barriers (ITBs) for the first time. The agreement of the modelling results with the experiments has been found to be comparable with the agreement of the modelling results produced by the semi-empirical Bohm/gyro-Bohm transport model. Weiland model overestimates the width of the ITB and the electron temperature. There is evidence that the density gradient in the Weiland model plays a more important role in governing the ITB formation dynamics for JET discharges than the suppression of turbulence by the omega(ExB) flow shearing rate.
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收藏
页码：A495 / A500
页数：6
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