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Linear and nonlinear simulations of the visco-resistive internal kink mode using the M3D code

文献类型：期刊论文

作者Shen, Wei1; Porcelli, Francesco2,3
刊名NUCLEAR FUSION
出版日期2018-10-01
卷号58期号:10页码:13
关键词visco-resistive internal kink mode viscosity sawtooth oscillations pulsating magnetic island snake
ISSN号0029-5515
DOI10.1088/1741-4326/aad9b1
通讯作者Shen, Wei(shenwei@ipp.ac.cn)
英文摘要Numerical simulations of visco-resistive internal kink modes with dominant poloidal and toroidal mode numbers m/n = 1 in tokamak plasma configurations have been carried out using the M3D code. The numerical scaling of the growth rate of linear visco-resistive internal kink is found to agree reasonably well with the analytical theory. The impact of toroidal effects is assessed. Nonlinear simulations show that when viscosity increases, the nonlinear evolution of resistive internal kinks transits from cyclic, Kadomtsev-like sawtooth oscillations at relatively low values of the viscosity parameter, to pulsating m/n = 1 magnetic islands at intermediate viscosity, to steady state islands at high viscosity. For the pulsating and steady state scenarios, the safety factor profile is nearly flat and almost equals to unity in the core region. Regimes with pulsating or steady state islands may be relevant to the interpretation of partial sawteeth and of the so-called snake phenomenon sometimes observed in tokamak experiments.
WOS关键词REVERSED-FIELD PINCH ; TOROIDAL GEOMETRY ; MHD ; OSCILLATIONS ; BIFURCATION ; TOKAMAK ; PLASMAS ; SNAKES
资助项目National Key R&D Program of China[2017YFE0300400] ; National Natural Science Foundation of China[11605245] ; National Natural Science Foundation of China[11505022] ; National Natural Science Foundation of China[41504113] ; Dalian University of Technology Fundamental Research Fund[DUT17LK34]
WOS研究方向Physics
语种英语
WOS记录号WOS:000443247800004
出版者IOP PUBLISHING LTD
资助机构National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Key R&D Program of China ; 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源URL[http://ir.hfcas.ac.cn:8080/handle/334002/38567]  
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Shen, Wei
作者单位1.Chinese Acad Sci, Inst Plasma Phys, Hefei, Anhui, Peoples R China
2.Univ Sci & Technol China, Dept Modern Phys, Hefei, Anhui, Peoples R China
3.Polytech Univ Turin, Dept Appl Sci & Technol, Turin, Italy
推荐引用方式
GB/T 7714		 Shen, Wei,Porcelli, Francesco. Linear and nonlinear simulations of the visco-resistive internal kink mode using the M3D code[J]. NUCLEAR FUSION,2018,58(10):13.
APA Shen, Wei,&Porcelli, Francesco.(2018).Linear and nonlinear simulations of the visco-resistive internal kink mode using the M3D code.NUCLEAR FUSION,58(10),13.
MLA Shen, Wei,et al."Linear and nonlinear simulations of the visco-resistive internal kink mode using the M3D code".NUCLEAR FUSION 58.10(2018):13.

入库方式： OAI收割

来源：合肥物质科学研究院

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