Nonlinear evolution of double tearing modes in tokamaks

被引：48

作者：

Fredrickson, E ^{[1
]}

Bell, M ^{[1
]}

Budny, RV ^{[1
]}

Synakowski, E ^{[1
]}

机构：

[1] Princeton Univ, Princeton Plasma Phys Lab, Princeton, NJ 08543 USA

来源：

PHYSICS OF PLASMAS | 2000年 / 7卷 / 10期

关键词：

D O I：

10.1063/1.1289893

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 Delta' formalism with neoclassical modifications has proven to be a useful tool in the study of tearing modes in high beta, collisionless plasmas. In this paper the formalism developed for the inclusion of neoclassical effects on tearing modes in monotonic q-profile plasmas is extended to plasmas with hollow current profiles and double rational surfaces. First, the classical formalism of tearing modes in the Rutherford regime in low beta plasmas is extended to q profiles with two rational surfaces and it is shown that this formalism is readily extended to include neoclassical effects. The evolution of a double tearing mode on the Tokamak Fusion Test Reactor is then simulated. Reasonable agreement is found for the outer island, but the stabilizing effect of the neoclassical term is overly large for the inner island. (C) 2000 American Institute of Physics. [S1070-664X(00)03110-4].

引用

页码：4112 / 4120

页数：9

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