Magnetohydrodynamic dynamo effect from electrostatic drift velocity field on sustainment of reversed field pinch plasmas in three-dimensional KTX equilibrium

doi:10.1088/1361-6587/ac6891

	Magnetohydrodynamic dynamo effect from electrostatic drift velocity field on sustainment of reversed field pinch plasmas in three-dimensional KTX equilibrium
	Zu, Yiming 1; Mao, Wenzhe 1; Liu, Jinmao 2; Liu, Haifeng 2; Zhang, Shoubiao 3; Lan, Tao 1; Li, Hong 1; Xie, Jinlin 1; Liu, Adi 1; Zhou, Chu 1
刊名	PLASMA PHYSICS AND CONTROLLED FUSION
	2022-06-01
卷号	64
关键词	quasi-single-helicity VMEC code electrostatic dynamo
ISSN号	0741-3335
DOI	10.1088/1361-6587/ac6891
通讯作者	Mao, Wenzhe(maozhe@ustc.edu.cn)
英文摘要	A dynamo is necessary for reversed field pinch (RFP) configuration sustainment in a continuous way or oscillation cycles by self-organization. A dynamo velocity field from electrostatic drift is studied in three-dimensional (3D) equilibrium for Keda Torus eXperiment RFP plasmas in quasi-multi-helical (QMH) and quasi-single-helical (QSH) states. The 3D equilibrium reconstruction is computed by VMEC code. It is found that the electrostatic potential provides helical modulation of plasma flow in QSH states. The electrostatic potential in QMH states is processed as a superposition of limited helical harmonics, and it shows an axisymmetric pattern. Non-axisymmetric components are negligible in QMH states because of flux surface averaging of the electrostatic field and corresponding electrostatic drift flow. The electrostatic drift velocity is comparable to the total plasma drift in QSH states; this implies that the electrostatic drift may play an important role in sustaining the helical configuration in RFP plasma.
资助项目	National Magnetic Confinement Fusion Program of China[2017YFE0301704] ; National Magnetic Confinement Fusion Program of China[2017YFE0301705] ; National Magnetic Confinement Fusion Program of China[2017YFE0301700] ; National Natural Science Foundation of China[11635008] ; National Natural Science Foundation of China[11375188] ; National Natural Science Foundation of China[11975231]
WOS关键词	SINGLE-HELICITY ; PARADIGM
WOS研究方向	Physics
语种	英语
出版者	IOP Publishing Ltd
WOS记录号	WOS:000788288600001
资助机构	National Magnetic Confinement Fusion Program of China ; National Natural Science Foundation of China
内容类型	期刊论文
源URL	[http://ir.hfcas.ac.cn:8080/handle/334002/131436]
专题	中国科学院合肥物质科学研究院
通讯作者	Mao, Wenzhe
作者单位	1.Univ Sci & Technol China, Sch Nucl Sci & Technol, Hefei 230026, Anhui, Peoples R China 2.Southwest Jiaotong Univ, Sch Phys Sci & Technol, Chengdu 610031, Peoples R China 3.Chinese Acad Sci, Inst Plasma Phys, Hefei 230031, Peoples R China
推荐引用方式 GB/T 7714	Zu, Yiming,Mao, Wenzhe,Liu, Jinmao,et al. Magnetohydrodynamic dynamo effect from electrostatic drift velocity field on sustainment of reversed field pinch plasmas in three-dimensional KTX equilibrium[J]. PLASMA PHYSICS AND CONTROLLED FUSION,2022,64.
APA	Zu, Yiming.,Mao, Wenzhe.,Liu, Jinmao.,Liu, Haifeng.,Zhang, Shoubiao.,...&Liu, Wandong.(2022).Magnetohydrodynamic dynamo effect from electrostatic drift velocity field on sustainment of reversed field pinch plasmas in three-dimensional KTX equilibrium.PLASMA PHYSICS AND CONTROLLED FUSION,64.
MLA	Zu, Yiming,et al."Magnetohydrodynamic dynamo effect from electrostatic drift velocity field on sustainment of reversed field pinch plasmas in three-dimensional KTX equilibrium".PLASMA PHYSICS AND CONTROLLED FUSION 64(2022).