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Numerical simulations of the laser-driven Petschek-type magnetic reconnection
Xu SS(许杉杉)1,2; Mei ZX(梅志星)1; Zhong, Jiayong3; Lin J(林隽)1,2,4
发表期刊PHYSICS OF PLASMAS
2022-11
卷号29期号:11
DOI10.1063/5.0098447
产权排序第1完成单位
收录类别SCI ; EI
摘要

This paper describes a numerical study of the magnetic reconnection between two magnetic fields of opposite polarity. The magnetic fields are created by an electric current in a coil connected to two metal disks. One of the disks is irradiated by a strong laser beam, whereby large amounts of free electrons flow toward the other disk, constituting a closed circuit for the electric current flowing through the coil. Two parallel coils are arranged to connect the two disks, and irradiation of the laser beam on one disk results in parallel electric currents in the two coils, inducing two magnetic fields of opposite polarity in the region between them. The magnetic reconnection that occurs in this region is three-dimensional. This three-dimensional magnetic reconnection is investigated via magnetohydrodynamic numerical simulations. The characteristics of the Petschek-type magnetic reconnection are observed for the first time in such numerical simulations of magnetic reconnection. Changes in the shape of the magnetic field lines form the boundary of the dissipation region and the outflow region. Moreover, the thermal plasma generated by reconnection is strongly confined to the region where the reconnecting current sheet and the slow-mode shock are located, and no leaks of thermal plasma are observed. Comparisons with existing laboratory experiment results confirm that our numerical simulations reproduce the experimental outcomes and provide reasonable explanations for the results observed in laboratories.

资助项目Project of Chinese Academy of Sciences[XDA17040507] ; National Natural Science Foundation of China[11933009] ; National Natural Science Foundation of China[U2031141] ; Applied Basic Research of Yunnan Province[2019FB005] ; Yunnan Province Yunling Scholar Project ; Yunnan Province Scientist Workshop of Solar Physics
项目资助者Project of Chinese Academy of Sciences[XDA17040507] ; National Natural Science Foundation of China[11933009, U2031141] ; Applied Basic Research of Yunnan Province[2019FB005] ; Yunnan Province Yunling Scholar Project ; Yunnan Province Scientist Workshop of Solar Physics
语种英语
学科领域天文学 ; 太阳与太阳系 ; 太阳物理学
学科门类理学 ; 理学::天文学
文章类型Article
出版者AIP Publishing
出版地1305 WALT WHITMAN RD, STE 300, MELVILLE, NY 11747-4501 USA
ISSN1070-664X
URL查看原文
WOS记录号WOS:000882454600009
WOS研究方向Physics
WOS类目Physics, Fluids & Plasmas
关键词[WOS]CURRENT SHEETS ; ACCELERATION ; RESISTIVITY ; THICKNESS ; DENSITY ; FLARES
EI入藏号20224913215767
EI主题词Magnetohydrodynamics
EI分类号615.3 Magnetohydrodynamics (MHD) Power Generation - 701.1 Electricity: Basic Concepts and Phenomena - 701.2 Magnetism: Basic Concepts and Phenomena - 744.8 Laser Beam Interactions - 921 Mathematics - 932.3 Plasma Physics
引用统计
文献类型期刊论文
版本出版稿
条目标识符http://ir.ynao.ac.cn/handle/114a53/25655
专题太阳物理研究组
通讯作者Mei ZX(梅志星)
作者单位1.Yunnan Astronomical Observatory, Chinese Academy of Sciences, Kunming 650216, China;
2.University of Chinese Academy of Sciences, Beijing 100049, China;
3.Department of Astronomy, Beijing Normal University, Beijing 100875, China;
4.Center for Astronomical Mega-Science, Chinese Academy of Sciences, Beijing 100012, China
第一作者单位中国科学院云南天文台
通讯作者单位中国科学院云南天文台
推荐引用方式
GB/T 7714
Xu SS,Mei ZX,Zhong, Jiayong,et al. Numerical simulations of the laser-driven Petschek-type magnetic reconnection[J]. PHYSICS OF PLASMAS,2022,29(11).
APA Xu SS,Mei ZX,Zhong, Jiayong,&Lin J.(2022).Numerical simulations of the laser-driven Petschek-type magnetic reconnection.PHYSICS OF PLASMAS,29(11).
MLA Xu SS,et al."Numerical simulations of the laser-driven Petschek-type magnetic reconnection".PHYSICS OF PLASMAS 29.11(2022).
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