Study of turbulence in the high beta(P) discharge using only RF heating on EAST
文献类型：期刊论文
| 作者 | Zheng, S. Y.1; Zhang, D. B.1; Xue, E. B.1; Yu, L. M.1; Zhang, X. M.1; Huang, J.2 ; Xiao, Y.3; Wu, M. Q.4; Gong, X. Z.2
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| 刊名 | PLASMA PHYSICS AND CONTROLLED FUSION
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| 出版日期 | 2022-04-01 |
| 卷号 | 64 |
| ISSN号 | 0741-3335 |
| 关键词 | high poloidal beta gyrokinetic simulation turbulence transport |
| DOI | 10.1088/1361-6587/ac4b07 |
| 通讯作者 | Zhang, D. B.(zdbing@ecust.edu.cn) ; Zhang, X. M.(zhangxm@ecust.edu.cn) |
| 英文摘要 | High poloidal beta scenarios with a favorable energy confinement (beta(p) similar to 1.9, H98(y2) similar to 1.4) have been achieved on the Experimental Advanced Superconducting Tokamak using only radio frequency wave heating. Gyrokinetic simulations are carried out with experimental plasma parameters and tokamak equilibrium data of a typical high beta(p) discharge using the gyrokinetic toroidal code. Linear simulations show that electron-temperature scale length and electron-density scale length destabilize the turbulence, collision effects stabilize the turbulence, and the instability propagates in the electron diamagnetic direction. These properties indicate that the dominant instability in the core of high beta(p) plasma is a collisionless trapped electron mode. Ion thermal diffusivity, calculated by nonlinear gyrokinetic simulations, is consistent with the experimental value, in which the electron collision effects play an important role. Further analyses show that instabilities with k(theta)rho(s) > 0.38 are suppressed by collision effects and collision effects reduce the radial correlation length of turbulence, resulting in the suppression of the turbulence. |
| WOS关键词 | PROFILE |
| 资助项目 | National MCF Energy R&D Program of China[2019YFE03060000] ; National MCF Energy R&D Program of China[2019YFE03050000] ; National MCF Energy R&D Program of China[2019YFE03020004] ; National Natural Science Foundation of China[11675053] ; National Natural Science Foundation of China[12005063] ; National Natural Science Foundation of China[11875131] ; Users with Excellence Program of Hefei Science Center CAS[2020HSC-UE011] ; Users with Excellence Program of Hefei Science Center CAS[2021HSC-UE015] ; Anhui Provincial Natural Science Foundation[2008085Jo4] |
| WOS研究方向 | Physics |
| 语种 | 英语 |
| 出版者 | IOP Publishing Ltd |
| WOS记录号 | WOS:000762036500001 |
| 资助机构 | National MCF Energy R&D Program of China ; National Natural Science Foundation of China ; Users with Excellence Program of Hefei Science Center CAS ; Anhui Provincial Natural Science Foundation |
| 源URL | [http://ir.hfcas.ac.cn:8080/handle/334002/127799]  |
| 专题 | 中国科学院合肥物质科学研究院 |
| 通讯作者 | Zhang, D. B.; Zhang, X. M. |
| 作者单位 | 1.East China Univ Sci & Technol, Dept Phys, Shanghai 200237, Peoples R China 2.Chinese Acad Sci, Inst Plasma Phys, Hefei 230031, Peoples R China 3.Zhejiang Univ, Inst Fus Theory & Simulat, Hangzhou 310027, Peoples R China 4.Shenzhen Univ, Adv Energy Res Ctr, Shenzhen 518060, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zheng, S. Y.,Zhang, D. B.,Xue, E. B.,et al. Study of turbulence in the high beta(P) discharge using only RF heating on EAST[J]. PLASMA PHYSICS AND CONTROLLED FUSION,2022,64. |
| APA | Zheng, S. Y..,Zhang, D. B..,Xue, E. B..,Yu, L. M..,Zhang, X. M..,...&Gong, X. Z..(2022).Study of turbulence in the high beta(P) discharge using only RF heating on EAST.PLASMA PHYSICS AND CONTROLLED FUSION,64. |
| MLA | Zheng, S. Y.,et al."Study of turbulence in the high beta(P) discharge using only RF heating on EAST".PLASMA PHYSICS AND CONTROLLED FUSION 64(2022). |
入库方式： OAI收割
来源：合肥物质科学研究院
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