Influence of trapped energetic ions on low-frequency magnetohydrodynamic instabilities with reversed shear profile

doi:10.1063/5.0034690

	Influence of trapped energetic ions on low-frequency magnetohydrodynamic instabilities with reversed shear profile
	Gao, Baofeng 2; Cai, Huishan 2; Wang, Feng 3; Gao, Xiang 1,2; Wan, Yuanxi 1,2
刊名	PHYSICS OF PLASMAS
	2021
卷号	28
ISSN号	1070-664X
DOI	10.1063/5.0034690
通讯作者	Cai, Huishan(hscai@mail.ustc.edu.cn)
英文摘要	The influence of trapped energetic ions (TEIs) on m / n = 2 / 1 low-frequency magnetohydrodynamic (MHD) instabilities with reversed shear profile is investigated by a global kinetic-MHD hybrid simulation. For low energetic-ion beta, TEIs have a stabilizing effect on the double tearing mode (DTM). When the energetic-ion beta is larger than a threshold, an energetic-particle-driven mode, the fishbone-like mode (FLM), is excited; that is, a mode transition from the DTM to the FLM occurs. The threshold increases with increasing resistivity, and the growth rate of the FLM is reduced by the presence of resistivity. In addition, the dependences on energetic-ion beta, gyroradius, and injection velocity of the effects of TEIs are studied systematically.
资助项目	National Natural Science Foundation of China[11822505] ; National Natural Science Foundation of China[11835016] ; National Natural Science Foundation of China[11675257] ; Youth Innovation Promotion Association CAS ; National Magnetic Confinement Fusion Science Program[2014GB106004] ; Key Research Program of Frontier Science of the Chinese Academy of Sciences[QYZDJSSW-SYS016] ; National Key R&D Program of China[2017YFE0300500] ; National Key R&D Program of China[2017YFE0300501] ; Users with Excellence Program of Hefei Science Center CAS[2019HSC-UE013] ; Fundamental Research Funds for the Central Universities[WK3420000008] ; Collaborative Innovation Program of Hefei Science Center CAS[2019HSC-CIP014]
WOS关键词	MHD PHENOMENA ; MODES ; STABILIZATION ; PARTICLES ; STABILITY
WOS研究方向	Physics
语种	英语
出版者	AMER INST PHYSICS
WOS记录号	WOS:000609367200001
资助机构	National Natural Science Foundation of China ; Youth Innovation Promotion Association CAS ; National Magnetic Confinement Fusion Science Program ; Key Research Program of Frontier Science of the Chinese Academy of Sciences ; National Key R&D Program of China ; Users with Excellence Program of Hefei Science Center CAS ; Fundamental Research Funds for the Central Universities ; Collaborative Innovation Program of Hefei Science Center CAS
内容类型	期刊论文
源URL	[http://ir.hfcas.ac.cn:8080/handle/334002/119820]
专题	中国科学院合肥物质科学研究院
通讯作者	Cai, Huishan
作者单位	1.Chinese Acad Sci, Inst Plasma Phys, Hefei 230031, Peoples R China 2.Univ Sci & Technol China, Sch Nucl Sci & Technol, Hefei 230026, Peoples R China 3.Dalian Univ Technol, Key Lab Mat Modificat Laser Ion & Elect Beams, Minist Educ, Sch Phys, Dalian 116024, Peoples R China
推荐引用方式 GB/T 7714	Gao, Baofeng,Cai, Huishan,Wang, Feng,et al. Influence of trapped energetic ions on low-frequency magnetohydrodynamic instabilities with reversed shear profile[J]. PHYSICS OF PLASMAS,2021,28.
APA	Gao, Baofeng,Cai, Huishan,Wang, Feng,Gao, Xiang,&Wan, Yuanxi.(2021).Influence of trapped energetic ions on low-frequency magnetohydrodynamic instabilities with reversed shear profile.PHYSICS OF PLASMAS,28.
MLA	Gao, Baofeng,et al."Influence of trapped energetic ions on low-frequency magnetohydrodynamic instabilities with reversed shear profile".PHYSICS OF PLASMAS 28(2021).