Multi-region relaxed magnetohydrodynamics with flow

被引：12

作者：

Dennis, G. R. ^{[1
]}

Hudson, S. R. ^{[2
]}

Dewar, R. L. ^{[1
]}

Hole, M. J. ^{[1
]}

机构：

[1] Australian Natl Univ, Res Sch Phys & Engn, Canberra, ACT 0200, Australia

[2] Princeton Plasma Phys Lab, Princeton, NJ 08543 USA

来源：

PHYSICS OF PLASMAS | 2014年 / 21卷 / 04期

基金：

澳大利亚研究理事会;

关键词：

PLASMA; EQUILIBRIA; RELAXATION;

D O I：

10.1063/1.4870008

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：

We present an extension of the multi-region relaxed magnetohydrodynamics (MRxMHD) equilibrium model that includes plasma flow. This new model is a generalization of Woltjer's model of relaxed magnetohydrodynamics equilibria with flow. We prove that as the number of plasma regions becomes infinite, our extension of MRxMHD reduces to ideal MHD with flow. We also prove that some solutions to MRxMHD with flow are not time-independent in the laboratory frame, and instead have 3D structure which rotates in the toroidal direction with fixed angular velocity. This capability gives MRxMHD potential application to describing rotating 3D MHD structures such as "snakes" and long-lived modes. (C) 2014 AIP Publishing LLC.

引用

页数：9

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