Simulations of toroidal Alfven eigenmode excited by fast ions on the Experimental Advanced Superconducting Tokamak
文献类型:期刊论文
作者 | Pei, Youbin2,3,4; Xiang, Nong3; Shen, Wei3; Hu, Youjun3![]() ![]() ![]() |
刊名 | PHYSICS OF PLASMAS
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出版日期 | 2018-05-01 |
卷号 | 25期号:5页码:8 |
ISSN号 | 1070-664X |
DOI | 10.1063/1.5023538 |
英文摘要 | Kinetic-MagnetoHydroDynamic (MHD) hybrid simulations are carried out to study fast ion driven toroidal Alfven eigenmodes (TAEs) on the Experimental Advanced Superconducting Tokamak (EAST). The first part of this article presents the linear benchmark between two kinetic- MHD codes, namely MEGA and M3D-K, based on a realistic EAST equilibrium. Parameter scans show that the frequency and the growth rate of the TAE given by the two codes agree with each other. The second part of this article discusses the resonance interaction between the TAE and fast ions simulated by the MEGA code. The results show that the TAE exchanges energy with the cocurrent passing particles with the parallel velocity |vk(||)| approximate to V-A0/3 or |v(||)| approximate to V-A0/5, where V-A0 is the Alfven speed on the magnetic axis. The TAE destabilized by the counter-current passing ions is also analyzed and found to have a much smaller growth rate than the co-current ions driven TAE. One of the reasons for this is found to be that the overlapping region of the TAE spatial location and the counter-current ion orbits is narrow, and thus the wave-particle energy exchange is not efficient. Published by AIP Publishing. |
WOS关键词 | GYROKINETIC SIMULATION ; ENERGETIC PARTICLES ; PLASMAS ; MODES ; INSTABILITIES ; EXCITATION ; PHYSICS ; DRIVEN ; WAVES ; TFTR |
资助项目 | National Natural Science Foundation of China[11575249] ; National Magnetic Confinement Fusion Energy Research Program[2015GB110005] ; National Key R&D Program of China[2017YFE0300400] ; National Natural Science Foundation of China[11475220] ; National Natural Science Foundation of China[11575251] ; National Natural Science Foundation of China[11605245] |
WOS研究方向 | Physics |
语种 | 英语 |
WOS记录号 | WOS:000433961800036 |
出版者 | AMER INST PHYSICS |
源URL | [http://ir.hfcas.ac.cn:8080/handle/334002/38331] ![]() |
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 | Xiang, Nong; Shen, Wei |
作者单位 | 1.Natl Inst Fus Sci, Toki, Gifu 5095292, Japan 2.Chinese Acad Sci, Ctr Magnet Fus Theory, Hefei 230031, Anhui, Peoples R China 3.Chinese Acad Sci, Inst Plasma Phys, Hefei 230031, Anhui, Peoples R China 4.Univ Sci & Technol China, Hefei 230026, Anhui, Peoples R China |
推荐引用方式 GB/T 7714 | Pei, Youbin,Xiang, Nong,Shen, Wei,et al. Simulations of toroidal Alfven eigenmode excited by fast ions on the Experimental Advanced Superconducting Tokamak[J]. PHYSICS OF PLASMAS,2018,25(5):8. |
APA | Pei, Youbin.,Xiang, Nong.,Shen, Wei.,Hu, Youjun.,Todo, Y..,...&Huang, Juan.(2018).Simulations of toroidal Alfven eigenmode excited by fast ions on the Experimental Advanced Superconducting Tokamak.PHYSICS OF PLASMAS,25(5),8. |
MLA | Pei, Youbin,et al."Simulations of toroidal Alfven eigenmode excited by fast ions on the Experimental Advanced Superconducting Tokamak".PHYSICS OF PLASMAS 25.5(2018):8. |
入库方式: OAI收割
来源:合肥物质科学研究院
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