Skin effect modifications of the Resistive Wall Mode dynamics in tokamaks

被引：18

作者：

Villone, Fabio ^{[1
]}

Pustovitov, Vladimir D. ^{[2
]}

机构：

[1] Univ Cassino & Lazio Merid, Ass Euratom ENEA CREATE, DIEI, I-03043 Cassino, FR, Italy

[2] Natl Res Ctr, Kurchatov Inst, Inst Tokamak Phys, Moscow 123182, Russia

来源：

PHYSICS LETTERS A | 2013年 / 377卷 / 39期

关键词：

STABILITY; PLASMAS;

D O I：

10.1016/j.physleta.2013.08.021

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We present the first evidence of the skin-effect modification of the Resistive Wall Mode (RWM) dynamics in a tokamak. The computations are performed with the CarMa code, using its unique ability of treating volumetric 3D conducting structures. The results prove that conventional thin-wall models and codes, assuming the thin equivalent wall located on the inner side of a real (thick) wall, may fail to get accurate estimates of RWM growth rates, since the inclusion of the skin effect makes the growth rates always larger than otherwise. The difference is noticeable even for the conventional slow RWMs and becomes substantial for faster modes. Some possible equivalent thin-wall modeling approaches are also discussed. (C) 2013 Elsevier B.V. All rights reserved.

引用

页码：2780 / 2784

页数：5

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