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EMC3-EIRENE modeling of edge plasma to improve the ICRF coupling with local gas puffing in DEMO

文献类型：期刊论文

作者Zhang, Wei1,2,3,4; Franke, Thomas2; Noterdaeme, Jean-Marie2,4; Van Eester, Dirk5
刊名NUCLEAR FUSION
出版日期2018-12-01
卷号58期号:12页码:11
关键词scrape-off layer ICRF coupling DEMO local gas puffing
ISSN号0029-5515
DOI10.1088/1741-4326/aaddae
通讯作者Zhang, Wei(wei.zhang@ipp.mpg.de)
英文摘要We report the first 3D EMC3-EIRENE simulations of scrape-off layer (SOL) plasma in DEMO. EMC3-EIRENE is a 3D edge plasma fluid and neutral particle transport code. Effects of local gas puffing on the SOL density and ion cyclotron range of frequencies (ICRF) power coupling have been studied. A pure deuterium plasma is simulated and the puffing/fueling gas is deuterium gas. The gas puffing cases investigated include divertor, top, midplane and antenna gas puffing. The ICRF antenna is distributed through 360 degrees toroidally, and poloidally located in the outer top of the vessel. The results show that toroidally distributed but poloidally localized antenna gas puffing increases the density in front of the antenna most significantly, while top or midplane gas puffing increases this antenna density to a moderate level. Influences of gas puff rate and particle transport parameters on the SOL density are investigated. The parameter scans indicate that the shift of the fast wave cut-off density position to the antenna depends almost linearly on the total gas puff rate. To achieve a significant antenna density increase, the antenna gas puff rate should be at the level of 1.8 x 10(23) el s(-1) (i.e. 1.0 x 10(22) el s(-1) per tokamak segment). As the total gas puff rate increases to 4.0 x 10(23) el s(-1), the evanescent layer of the fast wave (with k(parallel to) = 2 m(-1)) almost vanishes. Moreover, it is found that antenna gas puffing reduces the local power flux to the main chamber wall near the gas valve due to a local decrease of the SOL temperature.
WOS关键词CURRENT DRIVE ; TOKAMAK ; ANTENNA
资助项目Euroatom research and training programme 2014-2018[633053]
WOS研究方向Physics
语种英语
WOS记录号WOS:000445283500001
出版者IOP PUBLISHING LTD
资助机构Euroatom research and training programme 2014-2018 ; Euroatom research and training programme 2014-2018 ; Euroatom research and training programme 2014-2018 ; Euroatom research and training programme 2014-2018 ; Euroatom research and training programme 2014-2018 ; Euroatom research and training programme 2014-2018 ; Euroatom research and training programme 2014-2018 ; Euroatom research and training programme 2014-2018 ; Euroatom research and training programme 2014-2018 ; Euroatom research and training programme 2014-2018 ; Euroatom research and training programme 2014-2018 ; Euroatom research and training programme 2014-2018 ; Euroatom research and training programme 2014-2018 ; Euroatom research and training programme 2014-2018 ; Euroatom research and training programme 2014-2018 ; Euroatom research and training programme 2014-2018
源URL[http://ir.hfcas.ac.cn:8080/handle/334002/39057]  
专题合肥物质科学研究院_中科院等离子体物理研究所
通讯作者Zhang, Wei
作者单位1.Chinese Acad Sci, Inst Plasma Phys, Hefei, Anhui, Peoples R China
2.Max Planck Inst Plasma Phys, Garching, Germany
3.Univ Chinese Acad Sci, Beijing, Peoples R China
4.Univ Ghent, Appl Phys Dept, Ghent, Belgium
5.ERM KMS, Lab Plasma Phys, Brussels, Belgium
推荐引用方式
GB/T 7714		 Zhang, Wei,Franke, Thomas,Noterdaeme, Jean-Marie,et al. EMC3-EIRENE modeling of edge plasma to improve the ICRF coupling with local gas puffing in DEMO[J]. NUCLEAR FUSION,2018,58(12):11.
APA Zhang, Wei,Franke, Thomas,Noterdaeme, Jean-Marie,&Van Eester, Dirk.(2018).EMC3-EIRENE modeling of edge plasma to improve the ICRF coupling with local gas puffing in DEMO.NUCLEAR FUSION,58(12),11.
MLA Zhang, Wei,et al."EMC3-EIRENE modeling of edge plasma to improve the ICRF coupling with local gas puffing in DEMO".NUCLEAR FUSION 58.12(2018):11.

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来源：合肥物质科学研究院

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