Numerical investigation of plasma-wall interaction during burst of ELMs in a tokamak device

doi:10.1063/1.4974268

CORC > 合肥物质科学研究院 > 中国科学院合肥物质科学研究院 > 中科院等离子体物理研究所

	Numerical investigation of plasma-wall interaction during burst of ELMs in a tokamak device
	Ou, Jing 1; Lin, Binbin ; Zhao, Xiaoyun
刊名	PHYSICS OF PLASMAS
	2017
卷号	24 期号:1 页码:1-8
DOI	10.1063/1.4974268
文献子类	Article
英文摘要	In the tokamak high confinement mode (H-mode), the transient heat fluxes caused by edge localized modes (ELMs) will eventually irradiate the plasma-facing components and may erode, even melt them. To study the performance of the plasma-wall interaction during ELMs, interactions among heat flux from plasma, surface temperature, and electron emission are simulated by considering self-consistency among plasma transport in the sheath, deposited heat at the wall, and material thermal response for carbon (C) and tungsten (W) walls. It is found that the sheath structure determines the surface temperature, which may in turn influence on the sheath. A large amount of electron emission can change the heat load from the plasma to the material surface due to the variation of the ELMs-induced electron temperature and the surface temperature. During the burst of ELMs, the surface temperature rises rapidly at first and then reaches a saturation state with a certain range of fluctuation. The development of these processes depends strongly on the characteristic of ELMs, deposited heat at the wall, and material properties. Simulation results also show that the erosion of the Experimental Advanced Superconducting Tokamak (EAST) divertor target is of no concern in H-mode operation with ELMs for the current and possible future operation parameters. Published by AIP Publishing.
WOS关键词	HOT-SPOT FORMATION ; ELECTRON-EMISSION ; FACING MATERIALS ; MAGNETIC-FIELD ; SHEATH ; ITER ; EROSION ; LOSSES ; ENERGY
WOS研究方向	Physics
语种	英语
WOS记录号	WOS:000395395100033
资助机构	National Natural Science Foundation of China(11475223 ; National Natural Science Foundation of China(11475223 ; National Natural Science Foundation of China(11475223 ; National Natural Science Foundation of China(11475223 ; National Natural Science Foundation of China(11475223 ; National Natural Science Foundation of China(11475223 ; National Natural Science Foundation of China(11475223 ; National Natural Science Foundation of China(11475223 ; National Magnetic Confinement Fusion Science Program of China(2015GB101003) ; National Magnetic Confinement Fusion Science Program of China(2015GB101003) ; National Magnetic Confinement Fusion Science Program of China(2015GB101003) ; National Magnetic Confinement Fusion Science Program of China(2015GB101003) ; National Magnetic Confinement Fusion Science Program of China(2015GB101003) ; National Magnetic Confinement Fusion Science Program of China(2015GB101003) ; National Magnetic Confinement Fusion Science Program of China(2015GB101003) ; National Magnetic Confinement Fusion Science Program of China(2015GB101003) ; program of Fusion Reactor Physics and Digital Tokamak ; program of Fusion Reactor Physics and Digital Tokamak ; program of Fusion Reactor Physics and Digital Tokamak ; program of Fusion Reactor Physics and Digital Tokamak ; program of Fusion Reactor Physics and Digital Tokamak ; program of Fusion Reactor Physics and Digital Tokamak ; program of Fusion Reactor Physics and Digital Tokamak ; program of Fusion Reactor Physics and Digital Tokamak ; CAS ; CAS ; CAS ; CAS ; CAS ; CAS ; CAS ; CAS ; 11105176) ; 11105176) ; 11105176) ; 11105176) ; 11105176) ; 11105176) ; 11105176) ; 11105176) ; National Natural Science Foundation of China(11475223 ; National Natural Science Foundation of China(11475223 ; National Natural Science Foundation of China(11475223 ; National Natural Science Foundation of China(11475223 ; National Natural Science Foundation of China(11475223 ; National Natural Science Foundation of China(11475223 ; National Natural Science Foundation of China(11475223 ; National Natural Science Foundation of China(11475223 ; National Magnetic Confinement Fusion Science Program of China(2015GB101003) ; National Magnetic Confinement Fusion Science Program of China(2015GB101003) ; National Magnetic Confinement Fusion Science Program of China(2015GB101003) ; National Magnetic Confinement Fusion Science Program of China(2015GB101003) ; National Magnetic Confinement Fusion Science Program of China(2015GB101003) ; National Magnetic Confinement Fusion Science Program of China(2015GB101003) ; National Magnetic Confinement Fusion Science Program of China(2015GB101003) ; National Magnetic Confinement Fusion Science Program of China(2015GB101003) ; program of Fusion Reactor Physics and Digital Tokamak ; program of Fusion Reactor Physics and Digital Tokamak ; program of Fusion Reactor Physics and Digital Tokamak ; program of Fusion Reactor Physics and Digital Tokamak ; program of Fusion Reactor Physics and Digital Tokamak ; program of Fusion Reactor Physics and Digital Tokamak ; program of Fusion Reactor Physics and Digital Tokamak ; program of Fusion Reactor Physics and Digital Tokamak ; CAS ; CAS ; CAS ; CAS ; CAS ; CAS ; CAS ; CAS ; 11105176) ; 11105176) ; 11105176) ; 11105176) ; 11105176) ; 11105176) ; 11105176) ; 11105176)
内容类型	期刊论文
源URL	[http://ir.hfcas.ac.cn:8080/handle/334002/31738]
专题	合肥物质科学研究院_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, Peoples R China 2.Chinese Acad Sci, China Magnet Fus Theory, Hefei 230031, Peoples R China
推荐引用方式 GB/T 7714	Ou, Jing,Lin, Binbin,Zhao, Xiaoyun. Numerical investigation of plasma-wall interaction during burst of ELMs in a tokamak device[J]. PHYSICS OF PLASMAS,2017,24(1):1-8.
APA	Ou, Jing,Lin, Binbin,&Zhao, Xiaoyun.(2017).Numerical investigation of plasma-wall interaction during burst of ELMs in a tokamak device.PHYSICS OF PLASMAS,24(1),1-8.
MLA	Ou, Jing,et al."Numerical investigation of plasma-wall interaction during burst of ELMs in a tokamak device".PHYSICS OF PLASMAS 24.1(2017):1-8.