Study on filament width of type-I ELM in EAST using VUV imaging system and simulation
文献类型：期刊论文
| 作者 | Ming, T. F.2; Tang, T. F.3; Shi, Q. Q.4; Long, F. F.5; Hou, S. W.1; Deng, R. J.6; Xia, T. Y.2; Zhang, X. X.2; Lian, H.2; Wu, X. H.2 |
| 刊名 | NUCLEAR FUSION
 |
| 出版日期 | 2022-12-01 |
| 卷号 | 62 |
| ISSN号 | 0029-5515 |
| 关键词 | type-I ELM filament VUV imaging BOUT plus EAST |
| DOI | 10.1088/1741-4326/ac95ad |
| 通讯作者 | Tang, T. F.(tang.tengfei.dut@gmail.com) ; Gao, X.(xgao@ipp.ac.cn) |
| 英文摘要 | The poloidal width of the filaments induced by the type-I edge localized mode has power dependence in EAST. The poloidal widths of the filaments observed by the high-speed vacuum ultraviolet (VUV) imaging system are proportional to the heating power and the ELM size. To understand this power dependence, the BOUT++ nonlinear simulations have been performed with the reconstructed equilibriums from the experimental measurements in this paper. The synthetic filament structures from BOUT++ nonlinear simulation match the experimental observations by the VUV imaging system. The BOUT++ nonlinear simulations also reproduce the power dependence of the filament widths and the ELM size. The filament width and the ELM size are inversely proportional to the toroidal mode number. The low-n mode has a broader radial and poloidal structure, which causes the larger filament width and ELM size. In the high input power case, the mode spectrum shifts to low-n, a result of increasing peeling drive. Besides, we found the beta(p) in a higher input power case leads to a broader pedestal, expanding the radial mode structure of the peeling-ballooning mode. |
| WOS关键词 | PEDESTAL |
| 资助项目 | National Key R&D Program of China[2017YFE0301205] ; National Key R&D Program of China[2019YFE03080200] ; National Natural Science Foundation of China[11975271] ; National Natural Science Foundation of China[12075284] ; National Natural Science Foundation of China[12075283] ; Chinese Academy of President's International Fellowship Initiative[2021VMA0022] |
| WOS研究方向 | Physics |
| 语种 | 英语 |
| 出版者 | IOP Publishing Ltd |
| WOS记录号 | WOS:000870861800001 |
| 资助机构 | National Key R&D Program of China ; National Natural Science Foundation of China ; Chinese Academy of President's International Fellowship Initiative |
| 源URL | [http://ir.hfcas.ac.cn:8080/handle/334002/129434]  |
| 专题 | 中国科学院合肥物质科学研究院 |
| 通讯作者 | Tang, T. F.; Gao, X. |
| 作者单位 | 1.Anhui Univ, Hefei 230601, Peoples R China 2.Chinese Acad Sci, Inst Plasma Phys, Hefei 230031, Peoples R China 3.Oak Ridge Associated Univ, Oak Ridge, TN 37831 USA 4.Univ Sci & Technol China, Hefei 230026, Peoples R China 5.Shenzhen Univ, Adv Energy Res Ctr, Shenzhen 518060, Peoples R China 6.Hangzhou Dianzi Univ, Hangzhou 310018, Peoples R China |
| 推荐引用方式 GB/T 7714 | Ming, T. F.,Tang, T. F.,Shi, Q. Q.,et al. Study on filament width of type-I ELM in EAST using VUV imaging system and simulation[J]. NUCLEAR FUSION,2022,62. |
| APA | Ming, T. F..,Tang, T. F..,Shi, Q. Q..,Long, F. F..,Hou, S. W..,...&Gao, X..(2022).Study on filament width of type-I ELM in EAST using VUV imaging system and simulation.NUCLEAR FUSION,62. |
| MLA | Ming, T. F.,et al."Study on filament width of type-I ELM in EAST using VUV imaging system and simulation".NUCLEAR FUSION 62(2022). |
入库方式： OAI收割
来源：合肥物质科学研究院
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