Simulation of arc crater formation and evolution on plasma facing materials

doi:10.1016/j.nme.2021.100964

HFCAS OpenIR

	Simulation of arc crater formation and evolution on plasma facing materials
	Wang, Baoguo 1,2,3; Zhu, Dahuan1 ; Ding, Rui1 ; Rohde, Volker 2; Li, Changjun 1; Chen, Junling1
	2021-06-01
发表期刊	NUCLEAR MATERIALS AND ENERGY
通讯作者	Zhu, Dahuan()
摘要	Arc erosion on plasma facing materials in tokamak devices is a potential source of impurities and dust in plasma. A two dimensional axially symmetric COMSOL model with heat transfer, fluid dynamics including phase transition and surface tension effect has been used to describe the formation and evolution of arc craters on plasma facing materials. The formation and evolution of arc crater on W cathode is described in detail. The energy flux loading causes melting of central area within a few nanoseconds. Due to the gradients of incident pressure, the melted layer is extruded out, and thus forms the melt jets. The differences of the arc craters on several related materials in tokamaks under the same pressure and energy flux density are also discussed. The crater temperature of W and Mo is much higher than that of Cu and Al. And, the melting volume of refractory metals W and Mo is significantly lower than that of Cu and Al. Refractory metals are more difficult to be damaged by the arcs, and more suitable for plasma facing materials.
关键词	Arc crater Tokamak PFMs Erosion Simulation
DOI	10.1016/j.nme.2021.100964
关键词[WOS]	VACUUM-ARC ; CATHODE ; TUNGSTEN ; MOTION
收录类别	SCI
语种	英语
资助项目	National Key R&D Program of China[2017YFA0402500] ; National Key R&D Program of China[2017YFE0301300] ; National Key R&D Program of China[2017YFE0302500] ; National Natural Science Foundation of China[11675219] ; National Natural Science Foundation of China[11775260] ; National Natural Science Foundation of China[11675218] ; National Natural Science Foundation of China[11975269] ; National Natural Science Foundation of China[11861131010] ; National Natural Science Foundation of China[12075279] ; CASHIPS Director's Fund[BJPY2019B01] ; Key Research Program of Frontier Sciences, CAS[ZDBS-LY-SLH010] ; Collaborative Innovation Program of Hefei Science Center, CAS[2020HSC-CIP006]
项目资助者	National Key R&D Program of China ; National Natural Science Foundation of China ; CASHIPS Director's Fund ; Key Research Program of Frontier Sciences, CAS ; Collaborative Innovation Program of Hefei Science Center, CAS
WOS研究方向	Nuclear Science & Technology
WOS类目	Nuclear Science & Technology
WOS记录号	WOS:000663579600006
出版者	ELSEVIER
引用统计	被引频次：7[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/334002/123839
专题	中国科学院合肥物质科学研究院
通讯作者	Zhu, Dahuan
作者单位	1.Chinese Acad Sci, Inst Plasma Phys, Hefei 230031, Peoples R China 2.Max Planck Inst Plasma Phys, D-85748 Garching, Germany 3.Univ Sci & Technol China, Hefei 230026, Peoples R China
第一作者单位	中科院等离子体物理研究所
通讯作者单位	中科院等离子体物理研究所
推荐引用方式 GB/T 7714	Wang, Baoguo,Zhu, Dahuan,Ding, Rui,et al. Simulation of arc crater formation and evolution on plasma facing materials[J]. NUCLEAR MATERIALS AND ENERGY,2021,27.
APA	Wang, Baoguo,Zhu, Dahuan,Ding, Rui,Rohde, Volker,Li, Changjun,&Chen, Junling.(2021).Simulation of arc crater formation and evolution on plasma facing materials.NUCLEAR MATERIALS AND ENERGY,27.
MLA	Wang, Baoguo,et al."Simulation of arc crater formation and evolution on plasma facing materials".NUCLEAR MATERIALS AND ENERGY 27(2021).