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  4. 中科院等离子体物理研究所
3D simulations of gas puff effects on edge plasma and ICRF coupling in JET

文献类型：期刊论文

作者Zhang, W.1,2,3; Jacquet, P.4; Lerche, E.4,5; Bilato, R.2; Bobkov, V.2; Coster, D.2; Feng, Y.2; Guillemaut, C.6; Goniche, M.7; Harting, D.4
刊名NUCLEAR FUSION
出版日期2017-05-01
卷号57期号:5页码:无
关键词Gas Puffing Icrf Coupling 3d Simulation Edge Plasma Jet
DOI10.1088/1741-4326/aa6817
文献子类Article
英文摘要Recent JET (ITER-Like Wall) experiments have shown that the fueling gas puffed from different locations of the vessel can result in different scrape-off layer (SOL) density profiles and therefore different radio frequency (RF) coupling. To reproduce the experimental observations, to understand the associated physics and to optimize the gas puff methods, we have carried out three-dimensional (3D) simulations with the EMC3-EIRENE code in JET-ILW including a realistic description of the vessel geometry and the gas injection modules (GIMs) configuration. Various gas puffing methods have been investigated, in which the location of gas fueling is the only variable parameter. The simulation results are in quantitative agreement with the experimental measurements. They confirm that compared to divertor gas fueling, mid-plane gas puffing increases the SOL density most significantly but locally, while top gas puffing increases it uniformly in toroidal direction but to a lower degree. Moreover, the present analysis corroborates the experimental findings that combined gas puff scenarios-based on distributed main chamber gas puffing-can be effective in increasing the RF coupling for multiple antennas simultaneously. The results indicate that the spreading of the gas, the local ionization and the transport of the ionized gas along the magnetic field lines connecting the local gas cloud in front of the GIMs to the antennas are responsible for the enhanced SOL density and thus the larger RF coupling.
WOS关键词PERFORMANCE ; PHYSICS
WOS研究方向Physics
语种英语
WOS记录号WOS:000399124600001
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) ; 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)
源URL[http://ir.hfcas.ac.cn:8080/handle/334002/31824]  
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, Ghent, Belgium
2.Max Planck Inst Plasma Phys, Garching, Germany
3.Chinese Acad Sci, Inst Plasma Phys, Hefei, Peoples R China
4.CCFE, Culham Sci Ctr, Abingdon OX14 3DB, Oxon, England
5.Trilateral Euregio Cluster, LPP ERM KMS, EUROfus Consortium Member, Brussels, Belgium
6.Univ Lisbon, Inst Super Tecn, Inst Plasmas & Fusao Nucl, Lisbon, Portugal
7.CEA, IRFM, F-13108 St Paul Les Durance, France
8.Culham Sci Ctr, JET, EUROfus Consortium, Abingdon OX14 3DB, Oxon, England
推荐引用方式
GB/T 7714		 Zhang, W.,Jacquet, P.,Lerche, E.,et al. 3D simulations of gas puff effects on edge plasma and ICRF coupling in JET[J]. NUCLEAR FUSION,2017,57(5):无.
APA Zhang, W..,Jacquet, P..,Lerche, E..,Bilato, R..,Bobkov, V..,...&JET Contributors.(2017).3D simulations of gas puff effects on edge plasma and ICRF coupling in JET.NUCLEAR FUSION,57(5),无.
MLA Zhang, W.,et al."3D simulations of gas puff effects on edge plasma and ICRF coupling in JET".NUCLEAR FUSION 57.5(2017):无.

入库方式： OAI收割

来源：合肥物质科学研究院

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