Experimental-like Helical Self-Organization in Reversed-Field Pinch Modeling

被引：40

作者：

Bonfiglio, D. ^{[1
]}

Veranda, M. ^{[1
]}

Cappello, S. ^{[1
]}

Escande, D. F. ^{[1
,2
]}

Chacon, L. ^{[3
]}

机构：

[1] Assoc Euratom ENEA Fus, Consorzio RFX, I-35127 Padua, Italy

[2] Aix Marseille Univ, CNRS, PIIM, UMR 7345, F-13013 Marseille, France

[3] Los Alamos Natl Lab, Los Alamos, NM 87545 USA

来源：

PHYSICAL REVIEW LETTERS | 2013年 / 111卷 / 08期

关键词：

SINGLE; MHD; FLUCTUATIONS; SUSTAINMENT; BIFURCATION; DYNAMO;

D O I：

10.1103/PhysRevLett.111.085002

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We report the first nonlinear three-dimensional magnetohydrodynamic (MHD) numerical simulations of the reversed-field pinch (RFP) that exhibit a systematic repetition of quasisingle helicity states with the same dominant mode in between reconnection events. This distinctive feature of experimental self-organized helical RFP plasmas is reproduced in MHD simulations at low dissipation by allowing a helical modulation of the plasma magnetic boundary similar to the experimental one. Realistic mode amplitudes and magnetic topology are also found.

引用

页数：5

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