STUDIES OF EDGE LOCALIZED MODES ON ASDEX

被引：55

作者：

ZOHM, H

WAGNER, F

ENDLER, M

GERNHARDT, J

HOLZHAUER, E

KERNER, W

MERTENS, V

机构：

[1] Max-Planck-Inst. fur Plasmaphys., Garching/Muncher

来源：

NUCLEAR FUSION | 1992年 / 32卷 / 03期

关键词：

D O I：

10.1088/0029-5515/32/3/I11

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 MHD behaviour connected with edge localized modes (ELMs) is studied using fast sample rate fluctuation diagnostics. It is found that ELMs on ASDEX are generally preceded by a coherent MHD mode of medium poloidal mode number (m = 10-15). At the onset of the ELM the mode behaviour changes to a turbulent one, leading to an outflux of heat and particles. These results are related to a model by Kerner and Jakoby, as described in Nucl. Fusion 29 (1989) 1959 (Section 7.2), which explains the ELM as a non-linear coupling of free-surface modes of resistive ballooning character. This model is in good agreement with the experimental findings.

引用

页码：489 / 494

页数：6

共 19 条

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