Effects of three-dimensional electromagnetic structures on resistive-wall-mode stability of reversed field pinches

被引：61

作者：

Villone, F. ^{[1
]}

Liu, Y. Q. ^{[2
]}

Paccagnella, R. ^{[3
,4
]}

Bolzonella, T. ^{[3
,4
]}

Rubinacci, G. ^{[5
]}

机构：

[1] Univ Cassino, DAEIMI, Ass Euratom ENEA CREATE, I-03043 Cassino, Italy

[2] EURATOM, Culham Sci Ctr, Abingdon OX14 3DB, Oxon, England

[3] Ass EURATOM ENEA, Consorzio RFX, I-35127 Padua, Italy

[4] CNR, I-35127 Padua, Italy

[5] Univ Naples Federico 2, DIEL, Ass Euratom ENEA CREATE, I-80125 Naples, Italy

来源：

PHYSICAL REVIEW LETTERS | 2008年 / 100卷 / 25期

基金：

英国工程与自然科学研究理事会;

关键词：

D O I：

10.1103/PhysRevLett.100.255005

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

In this Letter, the linear stability of the resistive wall modes (RWMs) in toroidal geometry for a reversed field pinch (RFP) plasma is studied. Three computational models are used: the cylindrical code ETAW, the toroidal MHD code MARS-F, and the CARMA code, able to take fully into account the effects of a three-dimensional conducting structure which mimics the real shell geometry of a reversed field pinch experimental device. The computed mode growth rates generally agree with experimental data. The toroidal effects and the three-dimensional features of the shell, like gaps, allow a novel interpretation of the RWM spectrum in RFP's and remove its degeneracy. This shows the importance of making accurate modeling of conductors for the RWM predictions also in future devices such as ITER.

引用

页数：4

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