3D simulations of gas puff effects on edge density and ICRF coupling in ASDEX Upgrade

doi:10.1088/0029-5515/56/3/036007

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

	3D simulations of gas puff effects on edge density and ICRF coupling in ASDEX Upgrade
	Zhang, W.1,2,3; Bobkov, V.2; Lunt, T.2; Noterdaeme, J. -M.1,2; Coster, D.2; Bilato, R.2; Jacquet, P.4; Brida, D.2; Feng, Y.2; Wolfrum, E.2
刊名	NUCLEAR FUSION
	2016-03-01
卷号	56 期号:3 页码:1-11
关键词	Gas Puff Icrf Coupling 3d Simulations Plasma Edge Density
DOI	10.1088/0029-5515/56/3/036007
文献子类	Article
英文摘要	In recent experiments, a local gas puff was found to be an effective way to tailor the scrape-off layer (SOL) density and improve the ion cyclotron range of frequency (ICRF) power coupling in tokamaks. In order to quantitatively reproduce these experiments, to understand the corresponding physics and to optimize the gas valve positions and rates, simulations were carried out with the 3D edge plasma transport code EMC3-EIRENE in ASDEX Upgrade. An inter-ELM phase of an H-mode discharge with a moderate gas puff rate (1.2 x 10(22) electrons s(-1)) is used in our simulations. We simulated cases with gas puff in the lower divertor, the outer mid-plane and the top of the machine while keeping other conditions the same. Compared with the lower divertor gas puff, the outer mid-plane gas puff can increase the local density in front of the antennas most effectively, while a toroidally uniform but significantly smaller enhancement is found for the top gas puff. Good agreement between our simulations and experiments is obtained. With further simulations, the mechanisms of SOL density tailoring via local gas puffing and the strategies of gas puff optimization are discussed in the paper.
WOS关键词	PLASMAS ; WAVES
WOS研究方向	Physics
语种	英语
WOS记录号	WOS:000373378200008
资助机构	Euratom research and training programme(633053) ; Euratom research and training programme(633053) ; Euratom research and training programme(633053) ; Euratom research and training programme(633053) ; Euratom research and training programme(633053) ; Euratom research and training programme(633053) ; Euratom research and training programme(633053) ; Euratom research and training programme(633053) ; EUROfusion Consortium ; EUROfusion Consortium ; EUROfusion Consortium ; EUROfusion Consortium ; EUROfusion Consortium ; EUROfusion Consortium ; EUROfusion Consortium ; EUROfusion Consortium ; Euratom research and training programme(633053) ; Euratom research and training programme(633053) ; Euratom research and training programme(633053) ; Euratom research and training programme(633053) ; Euratom research and training programme(633053) ; Euratom research and training programme(633053) ; Euratom research and training programme(633053) ; Euratom research and training programme(633053) ; EUROfusion Consortium ; EUROfusion Consortium ; EUROfusion Consortium ; EUROfusion Consortium ; EUROfusion Consortium ; EUROfusion Consortium ; EUROfusion Consortium ; EUROfusion Consortium
内容类型	期刊论文
源URL	[http://ir.hfcas.ac.cn:8080/handle/334002/30896]
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.Univ Ghent, Dept Appl Phys, B-9000 Ghent, Belgium 2.EURATOM, Max Planck Inst Plasmaphys, D-14476 Garching, Germany 3.Chinese Acad Sci, Inst Plasma Phys, Hefei, Peoples R China 4.Culham Sci Ctr, CCFE, Abingdon, Oxon, England 5.Univ Lisbon, IST, Inst Plasmas Fusao Nucl, P-1699 Lisbon, Portugal
推荐引用方式 GB/T 7714	Zhang, W.,Bobkov, V.,Lunt, T.,et al. 3D simulations of gas puff effects on edge density and ICRF coupling in ASDEX Upgrade[J]. NUCLEAR FUSION,2016,56(3):1-11.
APA	Zhang, W..,Bobkov, V..,Lunt, T..,Noterdaeme, J. -M..,Coster, D..,...&ASDEX Upgrade Team.(2016).3D simulations of gas puff effects on edge density and ICRF coupling in ASDEX Upgrade.NUCLEAR FUSION,56(3),1-11.
MLA	Zhang, W.,et al."3D simulations of gas puff effects on edge density and ICRF coupling in ASDEX Upgrade".NUCLEAR FUSION 56.3(2016):1-11.