Hybrid simulation of fishbone instabilities in the EAST tokamak

doi:10.1088/1741-4326/aa7f9c

	Hybrid simulation of fishbone instabilities in the EAST tokamak
	Shen, Wei 1; Wang, Feng 2; Fu, G. Y.3,4; Xu, Liqing1 ; Li, Guoqiang1 ; Liu, Chengyue 1
	2017-11-01
发表期刊	NUCLEAR FUSION
摘要	Hybrid simulations with the global kinetic-magnetohydrodynamic (MHD) code M3D-K have been carried out to investigate the linear stability and nonlinear dynamics of beam-driven fishbone in the experimental advanced superconducting tokamak (EAST) experiment. Linear simulations show that a low frequency fishbone instability is excited at experimental value of beam ion pressure. The mode is mainly driven by low energy beam ions via precessional resonance. The results are consistent with the experimental measurement with respect to mode frequency and mode structure. When the beam ion pressure is increased to exceed a critical value, the low frequency mode transits to a beta-induced Alfven eigenmode (BAE) with much higher frequency. This BAE is driven by higher energy beam ions. Nonlinear simulations show that the frequency of the low frequency fishbone chirps up and down with corresponding hole-clump structures in phase space, consistent with the Berk-Breizman theory. In addition to the low frequency mode, the high frequency BAE is excited during the nonlinear evolution. For the transient case of beam pressure fraction where the low and high frequency modes are simultaneously excited in the linear phase, only one dominant mode appears in the nonlinear phase with frequency jumps up and down during nonlinear evolution.
文章类型	Article
关键词	Fishbone Instability East Frequency Chirping Hole-clump Formation Wave-particle Resonance
WOS标题词	Science & Technology ; Physical Sciences
DOI	10.1088/1741-4326/aa7f9c
关键词[WOS]	BEAM-DRIVEN INSTABILITIES ; CLUMP PAIR CREATION ; INTERNAL KINK MODE ; DIII-D TOKAMAK ; PLASMA ; IONS ; RECONSTRUCTION ; PHYSICS
收录类别	SCI
语种	英语
项目资助者	National Natural Science Foundation of China(11605245 ; National Natural Science Foundation of China(11605245 ; National Natural Science Foundation of China(11605245 ; National Natural Science Foundation of China(11605245 ; National Natural Science Foundation of China(11605245 ; National Natural Science Foundation of China(11605245 ; National Natural Science Foundation of China(11605245 ; National Natural Science Foundation of China(11605245 ; National Natural Science Foundation of China(11605245 ; National Natural Science Foundation of China(11605245 ; National Natural Science Foundation of China(11605245 ; National Natural Science Foundation of China(11605245 ; National Natural Science Foundation of China(11605245 ; National Natural Science Foundation of China(11605245 ; National Natural Science Foundation of China(11605245 ; National Natural Science Foundation of China(11605245 ; CASHIPS(YZJJ201510) ; CASHIPS(YZJJ201510) ; CASHIPS(YZJJ201510) ; CASHIPS(YZJJ201510) ; CASHIPS(YZJJ201510) ; CASHIPS(YZJJ201510) ; CASHIPS(YZJJ201510) ; CASHIPS(YZJJ201510) ; CASHIPS(YZJJ201510) ; CASHIPS(YZJJ201510) ; CASHIPS(YZJJ201510) ; CASHIPS(YZJJ201510) ; CASHIPS(YZJJ201510) ; CASHIPS(YZJJ201510) ; CASHIPS(YZJJ201510) ; CASHIPS(YZJJ201510) ; Department of Energy Scientific Discovery through Advanced Computing (SciDAC)(DE-AC02-09CH11466) ; Department of Energy Scientific Discovery through Advanced Computing (SciDAC)(DE-AC02-09CH11466) ; Department of Energy Scientific Discovery through Advanced Computing (SciDAC)(DE-AC02-09CH11466) ; Department of Energy Scientific Discovery through Advanced Computing (SciDAC)(DE-AC02-09CH11466) ; Department of Energy Scientific Discovery through Advanced Computing (SciDAC)(DE-AC02-09CH11466) ; Department of Energy Scientific Discovery through Advanced Computing (SciDAC)(DE-AC02-09CH11466) ; Department of Energy Scientific Discovery through Advanced Computing (SciDAC)(DE-AC02-09CH11466) ; Department of Energy Scientific Discovery through Advanced Computing (SciDAC)(DE-AC02-09CH11466) ; Department of Energy Scientific Discovery through Advanced Computing (SciDAC)(DE-AC02-09CH11466) ; Department of Energy Scientific Discovery through Advanced Computing (SciDAC)(DE-AC02-09CH11466) ; Department of Energy Scientific Discovery through Advanced Computing (SciDAC)(DE-AC02-09CH11466) ; Department of Energy Scientific Discovery through Advanced Computing (SciDAC)(DE-AC02-09CH11466) ; Department of Energy Scientific Discovery through Advanced Computing (SciDAC)(DE-AC02-09CH11466) ; Department of Energy Scientific Discovery through Advanced Computing (SciDAC)(DE-AC02-09CH11466) ; Department of Energy Scientific Discovery through Advanced Computing (SciDAC)(DE-AC02-09CH11466) ; Department of Energy Scientific Discovery through Advanced Computing (SciDAC)(DE-AC02-09CH11466) ; 11505022) ; 11505022) ; 11505022) ; 11505022) ; 11505022) ; 11505022) ; 11505022) ; 11505022) ; 11505022) ; 11505022) ; 11505022) ; 11505022) ; 11505022) ; 11505022) ; 11505022) ; 11505022)
WOS研究方向	Physics
WOS类目	Physics, Fluids & Plasmas
WOS记录号	WOS:000407714900002
引用统计	被引频次：30[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.hfcas.ac.cn:8080/handle/334002/33580
专题	中科院等离子体物理研究所
作者单位	1.Chinese Acad Sci, Inst Plasma Phys, Hefei 230031, Anhui, Peoples R China 2.Dalian Univ Technol, Sch Phys, Minist Educ, Key Lab Mat Modificat Laser Ion & Electron Beams, Dalian 116024, Peoples R China 3.Zhejiang Univ, Inst Fus Theory & Simulat, Dept Phys, Hangzhou 310027, Zhejiang, Peoples R China 4.Princeton Plasma Phys Lab, POB 451, Princeton, NJ 08543 USA
第一作者单位	中科院等离子体物理研究所
推荐引用方式 GB/T 7714	Shen, Wei,Wang, Feng,Fu, G. Y.,et al. Hybrid simulation of fishbone instabilities in the EAST tokamak[J]. NUCLEAR FUSION,2017,57(11).
APA	Shen, Wei,Wang, Feng,Fu, G. Y.,Xu, Liqing,Li, Guoqiang,&Liu, Chengyue.(2017).Hybrid simulation of fishbone instabilities in the EAST tokamak.NUCLEAR FUSION,57(11).
MLA	Shen, Wei,et al."Hybrid simulation of fishbone instabilities in the EAST tokamak".NUCLEAR FUSION 57.11(2017).