Role of E??×??B on in–out divertor asymmetry in high recycling/partial detachment regimes under L-mode and H-mode conditions

doi:10.1088/1741-4326/aa7d79

HFCAS OpenIR

	Role of E??×??B on in–out divertor asymmetry in high recycling/partial detachment regimes under L-mode and H-mode conditions
	Du,Hailong 1; Sang,Chaofeng 1; Wang,Liang1,2 ; Bonnin,Xavier 3; Wang,Huiqian 2; Sun,Jizhong 1; Wang,Dezhen 1
	2017-08-04
发表期刊	Nuclear Fusion
ISSN	0029-5515
摘要	Abstract The role of the E??×??B electric drift on background plasma and carbon impurity in–out divertor asymmetry was estimated under L-mode and H-mode conditions in the high recycling regime and partial detachment regime by using the edge plasma code SOLPS5.1. It was found that the poloidal electric drift Er??×??B also may play a dominant role during H-mode discharge in high recycling regime, instead of the radial electric drift Eθ??×??B. Moreover, it also was found that during H-mode with partial detachment both components can play simultaneously a crucial role in inducing the in–out asymmetry. Their synergistic effect can make the asymmetry much more obvious than that with either of them separately. However, Eθ??×??B in partial detachment during L-mode can play a main role in inducing in–out asymmetry, rather than Er??×??B. Besides, the role of E??×??B components on carbon (C) impurity in–out asymmetry was also addressed. Simulation results reveal that Er??×??B or Eθ??×??B individually have a very small effect on C impurity ions in–out asymmetry, especially Eθ??×??B, while their synergistic effect makes the impurity ions exhibit a much more remarkable in–out asymmetry. Moreover, it was found that the Er??×??B and Eθ??×??B drift flows in the private flux region could play a crucial role in inducing C impurity in–out asymmetry, rather than the parallel flow or electric drift flow in the upstream SOL region when only considering E??×??B.
关键词	drift E??×??B in–out asymmetry carbon impurity
DOI	10.1088/1741-4326/aa7d79
语种	英语
WOS记录号	IOP:0029-5515-57-11-aa7d79
出版者	IOP Publishing
引用统计
文献类型	期刊论文
条目标识符	http://ir.hfcas.ac.cn:8080/handle/334002/43018
专题	中国科学院合肥物质科学研究院
作者单位	1.Key Laboratory of Materials Modification by Laser, Ion and Electron Beams (Ministry of Education), School of Physics, Dalian University of Technology, Dalian 116024, People’s Republic of China 2.Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031, People’s Republic of China 3.ITER Organization, Route de Vinon-sur-Verdon, CS 90 046, 13067 St-Paul-lez-Durance, France
推荐引用方式 GB/T 7714	Du,Hailong,Sang,Chaofeng,Wang,Liang,等. Role of E??×??B on in–out divertor asymmetry in high recycling/partial detachment regimes under L-mode and H-mode conditions[J]. Nuclear Fusion,2017,57.
APA	Du,Hailong.,Sang,Chaofeng.,Wang,Liang.,Bonnin,Xavier.,Wang,Huiqian.,...&Wang,Dezhen.(2017).Role of E??×??B on in–out divertor asymmetry in high recycling/partial detachment regimes under L-mode and H-mode conditions.Nuclear Fusion,57.
MLA	Du,Hailong,et al."Role of E??×??B on in–out divertor asymmetry in high recycling/partial detachment regimes under L-mode and H-mode conditions".Nuclear Fusion 57(2017).