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.
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页数：5
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