Tokamak magneto-hydrodynamics and reference magnetic coordinates for simulations of plasma disruptions

doi:10.1063/1.4922896

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	Tokamak magneto-hydrodynamics and reference magnetic coordinates for simulations of plasma disruptions
	Zakharov, Leonid E.1; Li, Xujing 2
	2015-06-01
发表期刊	PHYSICS OF PLASMAS
ISSN	1070-664X
卷号	22 期号:6 页码:21
摘要	This paper formulates the Tokamak Magneto-Hydrodynamics (TMHD), initially outlined by X. Li and L. E. Zakharov [Plasma Science and Technology 17(2), 97-104 (2015)] for proper simulations of macroscopic plasma dynamics. The simplest set of magneto-hydrodynamics equations, sufficient for disruption modeling and extendable to more refined physics, is explained in detail. First, the TMHD introduces to 3-D simulations the Reference Magnetic Coordinates (RMC), which are aligned with the magnetic field in the best possible way. The numerical implementation of RMC is adaptive grids. Being consistent with the high anisotropy of the tokamak plasma, RMC allow simulations at realistic, very high plasma electric conductivity. Second, the TMHD splits the equation of motion into an equilibrium equation and the plasma advancing equation. This resolves the 4 decade old problem of Courant limitations of the time step in existing, plasma inertia driven numerical codes. The splitting allows disruption simulations on a relatively slow time scale in comparison with the fast time of ideal MHD instabilities. A new, efficient numerical scheme is proposed for TMHD. (C) 2015 AIP Publishing LLC.
DOI	10.1063/1.4922896
语种	英语
资助项目	U.S. DoE[DE-AC02-09-CH11466] ; Chinese National Magnetic Confinement Fusion Science Program[2011GB105003]
WOS研究方向	Physics
WOS类目	Physics, Fluids & Plasmas
WOS记录号	WOS:000357689500038
出版者	AMER INST PHYSICS
引用统计
文献类型	期刊论文
条目标识符	http://ir.amss.ac.cn/handle/2S8OKBNM/20267
专题	中国科学院数学与系统科学研究院
通讯作者	Zakharov, Leonid E.
作者单位	1.Princeton Plasma Phys Lab, Princeton, NJ 08543 USA 2.Chinese Acad Sci, Acad Math & Syst Sci, Inst Computat Math & Sci Engn Comp, Beijing 100190, Peoples R China
推荐引用方式 GB/T 7714	Zakharov, Leonid E.,Li, Xujing. Tokamak magneto-hydrodynamics and reference magnetic coordinates for simulations of plasma disruptions[J]. PHYSICS OF PLASMAS,2015,22(6):21.
APA	Zakharov, Leonid E.,&Li, Xujing.(2015).Tokamak magneto-hydrodynamics and reference magnetic coordinates for simulations of plasma disruptions.PHYSICS OF PLASMAS,22(6),21.
MLA	Zakharov, Leonid E.,et al."Tokamak magneto-hydrodynamics and reference magnetic coordinates for simulations of plasma disruptions".PHYSICS OF PLASMAS 22.6(2015):21.