Adaptive Grids in Simulations of Toroidal Plasma Starting from Magneto-Hydrodynamic Equilibrium

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	Adaptive Grids in Simulations of Toroidal Plasma Starting from Magneto-Hydrodynamic Equilibrium
其他题名	Adaptive Grids in Simulations of Toroidal Plasma Starting from Magneto-Hydrodynamic Equilibrium
	Li Xujing 1; Zakharov L E 2; Galkin S A 3
	2015
发表期刊	PLASMA SCIENCE & TECHNOLOGY
ISSN	1009-0630
卷号	17 期号:2 页码:97-104
摘要	This paper introduces the notion of Tokamak Magneto-Hydrodynamics (TMHD), which explicitly reflects the anisotropy of a high temperature tokamak plasma. The set of TMHD equations is formulated for simulation of macroscopic plasma dynamics and disruptions in tokamaks. Free from the Courant restriction on the time step, this set of equations is adequate to plasma dynamics with realistic parameters of high performance plasmas and does not require any extension of the MHD plasma model. At the same time, TMHD requires the use of magnetic field aligned numerical grids. Examples of their use in 2-dimensional cases of tokamak equilibria and dynamics of the wall touching kink mode are presented. For the 3-dimensional case of an ergodic magnetic field, this paper introduces the reference magnetic coordinates as a practical algorithm for generating adaptive grids for TMHD.
其他摘要	This paper introduces the notion of Tokamak Magneto-Hydrodynamics (TMHD),which explicitly reflects the anisotropy of a high temperature tokamak plasma. The set of TMHD equations is formulated for simulation of macroscopic plasma dynamics and disruptions in tokamaks. Free from the Courant restriction on the time step, this set of equations is adequate to plasma dynamics with realistic parameters of high performance plasmas and does not require any extension of the MHD plasma model. At the same time, TMHD requires the use of magnetic field aligned numerical grids. Examples of their use in 2-dimensional cases of tokamak equilibria and dynamics of the wall touching kink mode are presented. For the 3-dimensional case of an ergodic magnetic field, this paper introduces the reference magnetic coordinates as a practical algorithm for generating adaptive grids for TMHD.
关键词	RECONSTRUCTION TOKAMAKS PROFILES tokamak magneto-hydrodynamics disruptions numerical simulations adaptive grid
收录类别	CSCD
语种	英语
资助项目	[US DoE] ; [National Magnetic Confinement Fusion Science Program of China] ; [US DOE SBIR]
CSCD记录号	CSCD:5350909
引用统计
文献类型	期刊论文
条目标识符	http://ir.amss.ac.cn/handle/2S8OKBNM/56696
专题	中国科学院数学与系统科学研究院
作者单位	1.中国科学院数学与系统科学研究院 2.Princeton Plasma Phys Lab, Princeton, NJ 08543 USA 3.FAR TECH Inc, San Diego, CA 92121 USA
推荐引用方式 GB/T 7714	Li Xujing,Zakharov L E,Galkin S A. Adaptive Grids in Simulations of Toroidal Plasma Starting from Magneto-Hydrodynamic Equilibrium[J]. PLASMA SCIENCE & TECHNOLOGY,2015,17(2):97-104.
APA	Li Xujing,Zakharov L E,&Galkin S A.(2015).Adaptive Grids in Simulations of Toroidal Plasma Starting from Magneto-Hydrodynamic Equilibrium.PLASMA SCIENCE & TECHNOLOGY,17(2),97-104.
MLA	Li Xujing,et al."Adaptive Grids in Simulations of Toroidal Plasma Starting from Magneto-Hydrodynamic Equilibrium".PLASMA SCIENCE & TECHNOLOGY 17.2(2015):97-104.