STABILITY OF THE N = 1 IDEAL INTERNAL KINK FOR LARGE ASPECT RATIO SHAFRANOV EQUILIBRIA

被引：17
|
作者：
BONDESON, A [1 ]
BUSSAC, MN [1 ]
机构：
[1] ECOLE POLYTECH,CTR PHYS THEOR,F-91128 PALAISEAU,FRANCE
来源：
NUCLEAR FUSION | 1992年 / 32卷 / 03期
关键词：
D O I：
10.1088/0029-5515/32/3/I13
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：
Stability limits for the ideal internal kink mode are calculated analytically for the Shafranov current profile using the large aspect ratio expansion. For equilibria with q(a) > 2 and circular cross-section, the maximum stable poloidal beta is below 0.1. In the absence of a conducting wall, an equilibrium with q(a) < 2 is unstable at arbitrarily small positive poloidal-beta or shear inside the q = 1 surface. The effects of non-circularity are discussed and quantitative results are given for elliptic cross-sections.
引用
收藏
页码：513 / 517
页数：5
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