Illustrating the physics of core tungsten (W) transport in a long-pulse steady-state H-mode discharge on EAST
文献类型：期刊论文
| 作者 | Shi, Shengyu5,6; Chen, Jiale5 ; Jian, Xiang3,4; Clarrisse, Bourdelle2; Wu, Muquan1; Wu, Mingfu5; Duan, Yanmin5; Chao, Yan5; Zhang, Ling5; Cheng, Yunxin5
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| 刊名 | NUCLEAR FUSION
 |
| 出版日期 | 2022-06-01 |
| 卷号 | 62 |
| 关键词 | EAST long-pulse steady-state H-mode core tungsten (W) transport experiment and modelling |
| ISSN号 | 0029-5515 |
| DOI | 10.1088/1741-4326/ac548b |
| 通讯作者 | Chen, Jiale(chen@ipp.ac.cn) ; Gao, Xiang(xgao@ipp.ac.cn) |
| 英文摘要 | The behavior of core tungsten (W) in a pure radio-frequency-heated long-pulse steady-state H-mode discharge in the Experimental Advanced Superconducting Tokamak (EAST) with an ITER-like divertor (ILD) is analyzed using experimental diagnostic data and modeled using a combination of drift-kinetic neoclassical and gyro-fluid turbulent software. In the steady state, the experimental core line-averaged W concentration (C (W)) is about 2 x 10(-5), which is evaluated using the intensity of the W unresolved transition array (W-UTA) spectral structure in the region of 45-70 angstrom (which is composed of W (27+)-W (45+) line emissions) through spectroscopy in the extreme ultraviolet region. W produces a peak of the radiated power density profile around a normalized radius of rho similar to 0.3. Therefore, W does not centrally accumulate in the experiment. A time slice of the steady-state is modeled, which accounts for both the neoclassical and turbulent transport components of W based on the self-consistent background plasma profiles simulated by TGYRO (Candy et al 2009 Phys. Plasmas 16 060704). It is found that turbulent transport dominates over neoclassical transport for W. In addition, the turbulent diffusion coefficient is large enough to offset the sum of the neoclassical and turbulent pinch (convection) velocities, so that the W density profile for a zero particle flux is not strongly peaked. By combining TGLF (Staebler et al 2017 Nucl. Fusion 57 066046) and NEO (Belli and Candy 2008 Plasma Phys. Control. Fusion 50 095010; 2012 Plasma Phys. Control. Fusion 54 015015) for the W transport coefficient with the impurity transport code STRAHL (Dux 2006 STRAHL User Manual), the experimental C (W) and the information radiated by W can be reproduced closely. In addition, the effect of toroidal rotation on the W transport is also clarified. |
| WOS关键词 | IMPURITY TRANSPORT ; PROFILE ; TOKAMAK |
| 资助项目 | Outstanding Project Funding for Young Researcher in ASIPP[DSJJ-2020-03] ; National Nature Science Foundation of China[12175277] ; National Nature Science Foundation of China[11975271] ; National Nature Science Foundation of China[11975273] ; National Nature Science Foundation of China[11775269] |
| WOS研究方向 | Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:000784123100001 |
| 出版者 | IOP Publishing Ltd |
| 资助机构 | Outstanding Project Funding for Young Researcher in ASIPP ; National Nature Science Foundation of China |
| 源URL | [http://ir.hfcas.ac.cn:8080/handle/334002/128607]  |
| 专题 | 中国科学院合肥物质科学研究院 |
| 通讯作者 | Chen, Jiale; Gao, Xiang |
| 作者单位 | 1.Shenzhen Univ, Adv Energy Res Ctr, Shenzhen 518060, Peoples R China 2.CEA, IRFM, F-13108 St Paul Les Durance, France 3.Gen Atom, POB 85608, San Diego, CA 92186 USA 4.Univ Calif San Diego, Ctr Energy Res, La Jolla, CA 92093 USA 5.Chinese Acad Sci, Inst Plasma Phys, Hefei 230031, Peoples R China 6.Univ Sci & Technol China, Hefei 230026, Peoples R China |
| 推荐引用方式 GB/T 7714 | Shi, Shengyu,Chen, Jiale,Jian, Xiang,et al. Illustrating the physics of core tungsten (W) transport in a long-pulse steady-state H-mode discharge on EAST[J]. NUCLEAR FUSION,2022,62. |
| APA | Shi, Shengyu.,Chen, Jiale.,Jian, Xiang.,Clarrisse, Bourdelle.,Wu, Muquan.,...&Odstrcil, Tomas.(2022).Illustrating the physics of core tungsten (W) transport in a long-pulse steady-state H-mode discharge on EAST.NUCLEAR FUSION,62. |
| MLA | Shi, Shengyu,et al."Illustrating the physics of core tungsten (W) transport in a long-pulse steady-state H-mode discharge on EAST".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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