Coherent transport structures in magnetized plasmas. II. Numerical results

被引：10
|
作者：
Di Giannatale, G. [1 ]
Falessi, M. V. [2 ,3 ]
Grasso, D. [4 ,5 ]
Pegoraro, F. [6 ]
Schep, T. J. [7 ]
机构：
[1] CNR, IGI, Corso Stati Uniti 4, I-35127 Padua, Italy
[2] ENEA CR Frascati, Via Enrico Fermi 45, I-00146 Frascati, Italy
[3] Roma Tre Univ, Dipartimento Matemat & Fis, Rome, Italy
[4] CNR, ISC, Cso Duca Abruzzi 24, I-10129 Turin, Italy
[5] Politecn Torino, Dipartimento Energia, Cso Duca Abruzzi 24, I-10129 Turin, Italy
[6] Univ Pisa, Dipartimento Fis E Fermi, Largo Pontecorvo 3, I-56127 Pisa, Italy
[7] Eindhoven Univ Technol, Dept Appl Phys, Fluid Dynam Lab, POB 513, NL-5600 MB Eindhoven, Netherlands
来源：
PHYSICS OF PLASMAS | 2018年 / 25卷 / 05期
基金：
欧盟地平线“2020”;
关键词：
D O I：
10.1063/1.5020164
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：
In a pair of linked articles (called Papers I and II, respectively), we apply the concept of Lagrangian Coherent Structures borrowed from the study of Dynamical Systems to chaotic magnetic field configurations in order to separate regions where field lines have different kinds of behavior. In the present article, Paper II, by means of a numerical procedure, we investigate the Lagrangian Coherent Structures in the case of a two-dimensional magnetic configuration with two island chains that are generated by magnetic reconnection and evolve nonlinearly in time. The comparison with previous results, obtained by assuming a fixed magnetic field configuration, allows us to explore the dependence of transport barriers on the particle velocity. Published by AIP Publishing.
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页数：10
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