Multiple secondary islands formation in nonlinear evolution of double tearing mode simulations

doi:10.1063/1.4978789

	Multiple secondary islands formation in nonlinear evolution of double tearing mode simulations
	Guo, W.1,2; Ma, J.1,2 ; Yu, Z.1,2
	2017-03-01
发表期刊	PHYSICS OF PLASMAS
摘要	A new numerical code solving the conservative perturbed resistive magnetohydrodynamic (MHD) model is developed. Numerical tests of the ideal Kelvin-Helmholtz instability and the resistive double tearing mode (DTM) show its capability in solving linear and nonlinear MHD instabilities. The nonlinear DTM evolution in 2D geometry is numerically investigated with low guiding field Bz0, short half-distance y(0) between the equilibrium current sheets, and small resistivity g. The interaction of islands on the two initial current sheets may generate an unstable flow driven current sheet with a high length-to-thickness aspect ratio (a), and multiple secondary islands can form. In general, the length-to-thickness aspect ratio a and the number of secondary islands increase with decreasing guide field B-z0, decreasing half-distance y(0), and increasing Lundquist number of the flow driven current sheet SL although the dependence may be non-monotonic. The reconnection rate dependence on SL, B-z0, and y(0) is also investigated. Published by AIP Publishing.
文章类型	Article
WOS标题词	Science & Technology ; Physical Sciences
DOI	10.1063/1.4978789
关键词[WOS]	REVERSED MAGNETIC SHEAR ; RECONNECTION ; PLASMAS ; MAGNETOHYDRODYNAMICS ; SATURATION ; EQUATIONS ; MECHANISM ; SCHEMES ; FIELDS ; GROWTH
收录类别	SCI
语种	英语
项目资助者	National Natural Science Foundation of China(11475219) ; National Natural Science Foundation of China(11475219) ; National Natural Science Foundation of China(11475219) ; National Natural Science Foundation of China(11475219) ; National Natural Science Foundation of China(11475219) ; National Natural Science Foundation of China(11475219) ; National Natural Science Foundation of China(11475219) ; National Natural Science Foundation of China(11475219) ; Science Foundation of the Institute of Plasma Physics, Chinese Academy of Sciences(DSJJ-15-JC02) ; Science Foundation of the Institute of Plasma Physics, Chinese Academy of Sciences(DSJJ-15-JC02) ; Science Foundation of the Institute of Plasma Physics, Chinese Academy of Sciences(DSJJ-15-JC02) ; Science Foundation of the Institute of Plasma Physics, Chinese Academy of Sciences(DSJJ-15-JC02) ; Science Foundation of the Institute of Plasma Physics, Chinese Academy of Sciences(DSJJ-15-JC02) ; Science Foundation of the Institute of Plasma Physics, Chinese Academy of Sciences(DSJJ-15-JC02) ; Science Foundation of the Institute of Plasma Physics, Chinese Academy of Sciences(DSJJ-15-JC02) ; Science Foundation of the Institute of Plasma Physics, Chinese Academy of Sciences(DSJJ-15-JC02) ; National Magnetic Confinement Fusion Science Program of China(2013GB111002) ; National Magnetic Confinement Fusion Science Program of China(2013GB111002) ; National Magnetic Confinement Fusion Science Program of China(2013GB111002) ; National Magnetic Confinement Fusion Science Program of China(2013GB111002) ; National Magnetic Confinement Fusion Science Program of China(2013GB111002) ; National Magnetic Confinement Fusion Science Program of China(2013GB111002) ; National Magnetic Confinement Fusion Science Program of China(2013GB111002) ; National Magnetic Confinement Fusion Science Program of China(2013GB111002)
WOS研究方向	Physics
WOS类目	Physics, Fluids & Plasmas
WOS记录号	WOS:000397872500018
引用统计	被引频次：14[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.hfcas.ac.cn:8080/handle/334002/31782
专题	中科院等离子体物理研究所
作者单位	1.Chinese Acad Sci, Inst Plasma Phys, Hefei 230031, Peoples R China 2.Chinese Acad Sci, Ctr Magnet Fus Theory, Hefei 230031, Peoples R China
第一作者单位	中科院等离子体物理研究所
推荐引用方式 GB/T 7714	Guo, W.,Ma, J.,Yu, Z.. Multiple secondary islands formation in nonlinear evolution of double tearing mode simulations[J]. PHYSICS OF PLASMAS,2017,24(3):1-10.
APA	Guo, W.,Ma, J.,&Yu, Z..(2017).Multiple secondary islands formation in nonlinear evolution of double tearing mode simulations.PHYSICS OF PLASMAS,24(3),1-10.
MLA	Guo, W.,et al."Multiple secondary islands formation in nonlinear evolution of double tearing mode simulations".PHYSICS OF PLASMAS 24.3(2017):1-10.

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