Simulation study of the influence on the tungsten concentration due to the cross-field transport in the scrape-off layer
文献类型：期刊论文
| 作者 | Xu, Yuchen1; Xu, Guoliang; Mao, Shifeng1,2; Ye, Minyou1 |
| 刊名 | PLASMA PHYSICS AND CONTROLLED FUSION
 |
| 出版日期 | 2021-09-01 |
| 卷号 | 63 |
| 关键词 | CFETR tungsten OEDGE scrape-off layer transport |
| ISSN号 | 0741-3335 |
| DOI | 10.1088/1361-6587/ac11b3 |
| 通讯作者 | Ye, Minyou(yemy@ustc.edu.cn) |
| 英文摘要 | It is critical to keep a low level of tungsten impurity concentration in the core plasma of the fusion reactor. Using the OEDGE code, the influence on the tungsten concentration due to the cross-field transport in the scrape-off layer is studied. Based on the design parameters of the China Fusion Engineering Test Reactor, the background plasma with the peak target electron temperature of 15 eV is generated using the onion-skin model. The neon impurity with the assumed concentration of 0.2% inside the separatrix is included for estimating the tungsten sputtering source. In a series of simulations of tungsten transport, the diffusion coefficient D (perpendicular to) is varied from 0.1 to 10 m(2) s(-1), and the hypothetical inward pinch velocity V (IMP) is in the range of 0-5 m s(-1). The tungsten concentration inside the separatrix increases with decreasing diffusion coefficient and exceeds 10(-5) for the diffusion coefficient lower than about 0.2 m(2) s(-1). When the hypothetical inward pinch is included, the tungsten concentration increases. The relation between the relative increase in tungsten concentration and V (IMP)/D (perpendicular to) is fitted. |
| WOS关键词 | ONION-SKIN MODEL ; IMPURITY TRANSPORT ; DIVERTOR PLASMA ; DESIGN ; SOL |
| 资助项目 | National Natural Science Foundation of China[11975232] ; National Key Research and Development Program of China[2018YFE0302101] ; Collaborative Innovation Program of Hefei Science Center CAS[2020HSC-CIP015] ; Supercomputing Center of University of Science and Technology of China |
| WOS研究方向 | Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:000675611800001 |
| 出版者 | IOP PUBLISHING LTD |
| 资助机构 | National Natural Science Foundation of China ; National Key Research and Development Program of China ; Collaborative Innovation Program of Hefei Science Center CAS ; Supercomputing Center of University of Science and Technology of China |
| 源URL | [http://ir.hfcas.ac.cn:8080/handle/334002/123278]  |
| 专题 | 中国科学院合肥物质科学研究院 |
| 通讯作者 | Ye, Minyou |
| 作者单位 | 1.Univ Sci & Technol China, Sch Nucl Sci & Technol, Hefei 230026, Peoples R China 2.Chinese Acad Sci, Inst Plasma Phys, Hefei 230031, Peoples R China |
| 推荐引用方式 GB/T 7714 | Xu, Yuchen,Xu, Guoliang,Mao, Shifeng,et al. Simulation study of the influence on the tungsten concentration due to the cross-field transport in the scrape-off layer[J]. PLASMA PHYSICS AND CONTROLLED FUSION,2021,63. |
| APA | Xu, Yuchen,Xu, Guoliang,Mao, Shifeng,&Ye, Minyou.(2021).Simulation study of the influence on the tungsten concentration due to the cross-field transport in the scrape-off layer.PLASMA PHYSICS AND CONTROLLED FUSION,63. |
| MLA | Xu, Yuchen,et al."Simulation study of the influence on the tungsten concentration due to the cross-field transport in the scrape-off layer".PLASMA PHYSICS AND CONTROLLED FUSION 63(2021). |
入库方式： OAI收割
来源：合肥物质科学研究院
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