Numerical investigation of the fishbone instability effect on thermal pressure in EAST tokamak

doi:10.1063/5.0102470

	Numerical investigation of the fishbone instability effect on thermal pressure in EAST tokamak
	Ren, Zhenzhen 1; Shen, Wei 2; Li, Guoqiang 2; Wu, Muquan 3; Yang, Jinhong 4; Wang, Weihua 4
刊名	AIP ADVANCES
	2022-07-01
卷号	12
DOI	10.1063/5.0102470
通讯作者	Shen, Wei(shenwei@ipp.ac.cn)
英文摘要	The formation of the internal transport barrier (ITB) is observed after the emergence of fishbone instabilities on the Experimental Advanced Superconducting Tokamak (EAST). The kinetic-magnetohydrodynamic hybrid code M3D-K has been applied to investigate the fishbone instability effect on thermal pressure based on EAST Shot No. 71320. Without fluid nonlinearity, it is found that when the central gradient of the total pressure profile is above a threshold, the thermal pressure profile becomes more peaked due to the nonlinear evolution of the fishbone instability, which confirms that the fishbone instability can transport the thermal pressure radially inward and promote the ITB formation. When fluid nonlinearity is included, the poloidal zonal flow prevents the thermal pressure to become more peaked in the core region. As the neoclassical effect can cause the damping of the poloidal zonal flow and is neglected in our simulation, the actual promotion of ITB formation due to the fishbone instability is expected to be between that without fluid nonlinearity and with fluid nonlinearity. (C) 2022 Author(s).
资助项目	National Key R&D Program of China[2019YFE03050002] ; National Key R&D Program of China[2018YFE0309101] ; National Natural Science Foundation of China[12005003] ; National Natural Science Foundation of China[11975270] ; National Natural Science Foundation of China[11905145]
WOS关键词	DISCHARGES ; PHYSICS ; DRIVEN ; MODES
WOS研究方向	Science & Technology - Other Topics ; Materials Science ; Physics
语种	英语
出版者	AIP Publishing
WOS记录号	WOS:000875628800008
资助机构	National Key R&D 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/334002/129831]
专题	中国科学院合肥物质科学研究院
通讯作者	Shen, Wei
作者单位	1.Anhui Univ, Sch Phys & Optoelect Engn, Hefei 230601, Anhui, Peoples R China 2.Chinese Acad Sci, Inst Plasma Phys, Hefei 230031, Peoples R China 3.Shenzhen Univ, Adv Energy Res Ctr, Shenzhen 518060, Peoples R China 4.Anhui Univ, Inst Phys Sci, Hefei 230039, Anhui, Peoples R China
推荐引用方式 GB/T 7714	Ren, Zhenzhen,Shen, Wei,Li, Guoqiang,et al. Numerical investigation of the fishbone instability effect on thermal pressure in EAST tokamak[J]. AIP ADVANCES,2022,12.
APA	Ren, Zhenzhen,Shen, Wei,Li, Guoqiang,Wu, Muquan,Yang, Jinhong,&Wang, Weihua.(2022).Numerical investigation of the fishbone instability effect on thermal pressure in EAST tokamak.AIP ADVANCES,12.
MLA	Ren, Zhenzhen,et al."Numerical investigation of the fishbone instability effect on thermal pressure in EAST tokamak".AIP ADVANCES 12(2022).