A MODEL FOR THE TURBULENCE IN THE SCRAPE-OFF LAYER OF TOKAMAKS

被引:85
作者
GARBET, X
LAURENT, L
ROUBIN, JP
SAMAIN, A
机构
[1] Département de recherches sur la fusion contrôlée, Centre d'études nucléaires de Cadarache, Association Euratom-CEA sur la fusion Saint-Paullez-Durance
关键词
D O I
10.1088/0029-5515/31/5/015
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 fluid theory of electrostatic perturbations in a scrape-off layer (SOL) plasma is analysed. The main difficulty is that the edge is theoretically found to be stable, while experimentally it is unstable. A possible explanation relies on the fact that the commonly used ballooning representation is not correct in the SOL. An alternative representation is proposed which reproduces the instability of the edge in several simple configurations and explains many experimental features.
引用
收藏
页码:967 / 972
页数:6
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