Structure bifurcation induced by wide magnetic islands
文献类型：期刊论文
| 作者 | Hu, Z. Q.3,4; Wang, Z. X.5; Wei, L.5; Li, J. Q.1; Kishimoto, Y.6; Lin, X. D.3; Gao, X.2
|
| 刊名 | NUCLEAR FUSION
 |
| 出版日期 | 2020-05-01 |
| 卷号 | 60 |
| 关键词 | magnetic island zonal flow multi-scale interaction MHD instability |
| ISSN号 | 0029-5515 |
| DOI | 10.1088/1741-4326/ab7d1a |
| 通讯作者 | Wei, L.(laiwei@dlut.edu.cn) |
| 英文摘要 | Magnetic islands resulting from magnetic reconnection play significantly important roles in critical issues of magnetic fusion plasmas, because they essentially change magnetic topology and significantly degrade plasma confinement. In this paper, we report that the wide islands can lead to a structure bifurcation of flow parity inside islands, then induce a state with a large vortex flow. The mechanism is identified as an instability in the configuration with magnetic islands, in which the eigenmode parity is contrary to the conventional tearing mode and the radial profile of zonal flow also changes. The critical values of the width of magnetic island for the bifurcation are obtained and discussed. The dependence of bifurcation on various physical parameters is studied in detail. It is found that tearing instability parameter Delta ' |
| WOS关键词 | RADIAL ELECTRIC-FIELD |
| 资助项目 | National Natural Science Foundation of China[11675038] ; National Natural Science Foundation of China[11805135] ; Fundamental Research Funds for the Central Universities[DUT18ZD101] ; Dalian Youth Science and Technology Project Support Program[2015R01] ; International Partnership Program of Chinese Academy of Sciences[Y16YZ17271] |
| WOS研究方向 | Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:000528752100001 |
| 出版者 | IOP PUBLISHING LTD |
| 资助机构 | National Natural Science Foundation of China ; Fundamental Research Funds for the Central Universities ; Dalian Youth Science and Technology Project Support Program ; International Partnership Program of Chinese Academy of Sciences |
| 源URL | [http://ir.hfcas.ac.cn:8080/handle/334002/103367]  |
| 专题 | 中国科学院合肥物质科学研究院 |
| 通讯作者 | Wei, L. |
| 作者单位 | 1.Southwestern Inst Phys, Chengdu 610041, Peoples R China 2.Chinese Acad Sci, Inst Plasma Phys, Hefei 330031, Peoples R China 3.Shenzhen Univ, Adv Energy Res Ctr, Shenzhen 518060, Peoples R China 4.Shenzhen Univ, Minist Educ & Guangdong Prov, Key Lab Optoelect Devices & Syst, Coll Phys & Optoelect Engn, Shenzhen 518060, Peoples R China 5.Dalian Univ Technol, Sch Phys, Key Lab Mat Modificat Beams, Minist Educ, Dalian 116024, Peoples R China 6.Kyoto Univ, Grad Sch Energy Sci, Uji, Kyoto 6110011, Japan |
| 推荐引用方式 GB/T 7714 | Hu, Z. Q.,Wang, Z. X.,Wei, L.,et al. Structure bifurcation induced by wide magnetic islands[J]. NUCLEAR FUSION,2020,60. |
| APA | Hu, Z. Q..,Wang, Z. X..,Wei, L..,Li, J. Q..,Kishimoto, Y..,...&Gao, X..(2020).Structure bifurcation induced by wide magnetic islands.NUCLEAR FUSION,60. |
| MLA | Hu, Z. Q.,et al."Structure bifurcation induced by wide magnetic islands".NUCLEAR FUSION 60(2020). |
入库方式： OAI收割
来源：合肥物质科学研究院
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