Modelling of the ICRF induced E??×??B convection in the scrape-off-layer of ASDEX Upgrade

doi:10.1088/0741-3335/58/9/095005

HFCAS OpenIR

	Modelling of the ICRF induced E??×??B convection in the scrape-off-layer of ASDEX Upgrade
	Zhang,W 1,2,3; Feng,Y 2; Noterdaeme,J-M 1,2; Bobkov,V 2; Colas,L 4; Coster,D 2; Lunt,T 2; Bilato,R 2; Jacquot,J 2; Ochoukov,R 2; Van Eester,D 5; K?ivská,A 5; Jacquet,P 6; Guimarais,L 7
	2016-08-19
发表期刊	Plasma Physics and Controlled Fusion
ISSN	0741-3335
摘要	Abstract In magnetic controlled fusion devices, plasma heating with radio-frequency (RF) waves in the ion cyclotron (IC) range of frequency relies on the electric field of the fast wave to heat the plasma. However, the slow wave can be generated parasitically. The electric field of the slow wave can induce large biased plasma potential (DC potential) through sheath rectification. The rapid variation of the rectified potential across the equilibrium magnetic field can cause significant convective transport (E??×??B drifts) in the scrape-off layer (SOL). In order to understand this phenomenon and reproduce the experiments, 3D realistic simulations are carried out with the 3D edge plasma fluid and kinetic neutral code EMC3-Eirene in ASDEX Upgrade. For this, we have added the prescribed drift terms to the EMC3 equations and verified the 3D code results against the analytical ones in cylindrical geometry. The edge plasma potential derived from the experiments is used to calculate the drift velocities, which are then treated as input fields in the code to obtain the final density distributions. Our simulation results are in good agreement with the experiments.
关键词	E??×??B convection RF sheath SOL density 3D simulation radio-frequency heating
DOI	10.1088/0741-3335/58/9/095005
语种	英语
WOS记录号	IOP:0741-3335-58-9-095005
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/334002/42843
专题	中国科学院合肥物质科学研究院
作者单位	1.Applied Physics Department, University of Ghent, Ghent, Belgium 2.Max-Planck-Institut für Plasmaphysik, Garching/Greifswald, Germany 3.Institute of Plasma Physics, Chinese Academy of Sciences, Hefei, People’s Republic of China 4.CEA, IRFM, F-13108 Saint-Paul-Lez-Durance, France 5.Laboratory for Plasma Physics, ERM/KMS, Brussels, Belgium 6.CCFE, Culham Science Centre, Abingdon, UK 7.Instituto de Plasmas e Fus?o Nuclear, IST, Universidade de Lisboa, Lisbon, Portugal
推荐引用方式 GB/T 7714	Zhang,W,Feng,Y,Noterdaeme,J-M,et al. Modelling of the ICRF induced E??×??B convection in the scrape-off-layer of ASDEX Upgrade[J]. Plasma Physics and Controlled Fusion,2016,58.
APA	Zhang,W.,Feng,Y.,Noterdaeme,J-M.,Bobkov,V.,Colas,L.,...&Guimarais,L.(2016).Modelling of the ICRF induced E??×??B convection in the scrape-off-layer of ASDEX Upgrade.Plasma Physics and Controlled Fusion,58.
MLA	Zhang,W,et al."Modelling of the ICRF induced E??×??B convection in the scrape-off-layer of ASDEX Upgrade".Plasma Physics and Controlled Fusion 58(2016).