Comparative modeling studies of carbon and tungsten impurity transport in the boundary plasma of EAST with a partially detached divertor condition | |
Xu, Guoliang2; Wang, Hui1,2; Ding, Rui2; Liu, Xiaoju2; Si, Hang2; Zhu, Dahuan2; Yan, Rong2; Hai, Ran3; Xie, Hai2; Chen, Junling2 | |
刊名 | NUCLEAR MATERIALS AND ENERGY |
2022-10-01 | |
卷号 | 33 |
DOI | 10.1016/j.nme.2022.101259 |
通讯作者 | Ding, Rui(rding@ipp.ac.cn) |
英文摘要 | The source and leakage of both C and W are comparatively studied for a partially detached divertor operation condition on EAST. Based on the EAST experiments, sequential SOLPS-DIVIMP simulations are carried out to study the transport of intrinsic impurities in the boundary plasma. Carbon distribution from the fluid SOLPS simulation is in good agreement with the impurity tracing results from the Monte-Carlo DIVIMP simulation. The impurity leakage processes from the divertor target to the core plasma are quantitatively analyzed and divided into three parts: the prompt redeposition, the divertor screening, and the main SOL screening. Under the partially detached divertor condition, W has a higher prompt redeposition rate and a weaker cross-field transport from the main SOL to the core region than C. However, the strong parallel impurity transport from the divertor region to the main SOL makes the total leakage rate of W two times higher than that of C. The impurity velocity gained from the ion temperature gradient force in both the near-SOL detached region and the far-SOL attached region is evaluated. The relatively higher ion temperature gradient velocity of W in the attached region is the main reason for the higher divertor leakage rate than C, and the strong W source in the far-SOL makes the leakage from the attached region more significant. |
资助项目 | National MCF Energy R&D Program of China[2022YFE03180100] ; National MCF Energy R&D Program of China[2019YFE03080100] ; National Natural Science Foundation of China[12022511] ; National Natural Science Foundation of China[12005143] ; National Natural Science Foundation of China[12005142] ; National Natural Science Foundation of China[12075283] ; Key Research Program of Frontier Sciences, CAS[ZDBS-LY-SLH010] ; Science Foundation of Institute of Plasma Physics, Chinese Academy[DSJJ-2021-02] ; Collaborative Innovation Program of Hefei Science Center Chinese Academy of Sciences[2020HSC-CIP015] |
WOS关键词 | DIII-D ; FACING COMPONENTS ; ASDEX UPGRADE ; EROSION ; DEPOSITION ; BEHAVIOR ; LAYER ; FLOW |
WOS研究方向 | Nuclear Science & Technology |
语种 | 英语 |
出版者 | ELSEVIER |
WOS记录号 | WOS:000862873900002 |
资助机构 | National MCF Energy R&D Program of China ; National Natural Science Foundation of China ; Key Research Program of Frontier Sciences, CAS ; Science Foundation of Institute of Plasma Physics, Chinese Academy ; Collaborative Innovation Program of Hefei Science Center Chinese Academy of Sciences |
内容类型 | 期刊论文 |
源URL | [http://ir.hfcas.ac.cn:8080/handle/334002/129271] |
专题 | 中国科学院合肥物质科学研究院 |
通讯作者 | Ding, Rui |
作者单位 | 1.Univ Sci & Technol China, Sci Isl Branch, Grad Sch, Hefei 230026, Peoples R China 2.Chinese Acad Sci, Inst Plasma Phys, Hefei Inst Phys Sci, Hefei 230031, Peoples R China 3.Dalian Univ Technol, Sch Phys, Key Lab Mat Modificat Laser Ion & Electron Beams, Dalian 116024, Peoples R China |
推荐引用方式 GB/T 7714 | Xu, Guoliang,Wang, Hui,Ding, Rui,et al. Comparative modeling studies of carbon and tungsten impurity transport in the boundary plasma of EAST with a partially detached divertor condition[J]. NUCLEAR MATERIALS AND ENERGY,2022,33. |
APA | Xu, Guoliang.,Wang, Hui.,Ding, Rui.,Liu, Xiaoju.,Si, Hang.,...&Chen, Junling.(2022).Comparative modeling studies of carbon and tungsten impurity transport in the boundary plasma of EAST with a partially detached divertor condition.NUCLEAR MATERIALS AND ENERGY,33. |
MLA | Xu, Guoliang,et al."Comparative modeling studies of carbon and tungsten impurity transport in the boundary plasma of EAST with a partially detached divertor condition".NUCLEAR MATERIALS AND ENERGY 33(2022). |
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