Modeling of the impact of neon seeding on the detachment in EAST by SOLPS-ITER
文献类型：期刊论文
| 作者 | Wang, Rong1; Yang, Zhongshi2 ; Li, Kedong2; Xu, Guosheng2; Jia, Guozhang2; Niu, Guojian2; Nian, Feifei1; He, Tao1; Meng, Lingyi2; Lin, Xin2
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| 刊名 | PHYSICS OF PLASMAS
 |
| 出版日期 | 2022-11-01 |
| 卷号 | 29 |
| ISSN号 | 1070-664X |
| DOI | 10.1063/5.0099270 |
| 通讯作者 | Yang, Zhongshi(zsyang@ipp.ac.cn) ; Li, Kedong(kdli@ipp.ac.cn) |
| 英文摘要 | In the EAST radiative divertor experiments, stable detachment and divertor protection have been achieved with mixed impurity gas seeding. Experiments indicate that neon (Ne) is an appropriate external impurity for plasma detachment in EAST. In this work, the physical mechanism of plasma detachment with Ne seeding in EAST is studied by using the SOLPS-ITER code package. The electron temperature T-et on the upper outer divertor target decreases to below 10 eV with Ne seeding, which is mainly due to the power loss and upstream power drop caused by the impurity radiation. For T-et < 10 eV, the significant drop of the poloidal saturation ion current j(s,p) occurs around the upper outer strike point. The simulation results show that the j(s,p) drop is mainly driven by the rise of the momentum loss and the upstream pressure loss. The increase in the momentum loss is mainly caused by the plasma-neutral interactions in the region from the X-point to the upper outer divertor target. The upstream pressure loss around the X-point is related to the decrease in the upstream electron temperature T-eu, which originates from the increased radiation loss with Ne seeding. Published under an exclusive license by AIP Publishing. |
| WOS关键词 | DIVERTOR DETACHMENT ; ASDEX-UPGRADE |
| 资助项目 | National Natural Science Foundation of China ; National Key Research & Development Program of China ; HFIPS Direction's Fund ; [11875287] ; [11705233] ; [U1867222] ; [2018YFE0303103] ; [2017YFE0301300] ; [2019YFE03030000] ; [YZJJ2022QN22] |
| WOS研究方向 | Physics |
| 语种 | 英语 |
| 出版者 | AIP Publishing |
| WOS记录号 | WOS:000880318200010 |
| 资助机构 | National Natural Science Foundation of China ; National Key Research & Development Program of China ; HFIPS Direction's Fund |
| 源URL | [http://ir.hfcas.ac.cn:8080/handle/334002/130315]  |
| 专题 | 中国科学院合肥物质科学研究院 |
| 通讯作者 | Yang, Zhongshi; Li, Kedong |
| 作者单位 | 1.Univ Sci & Technol China, Hefei 230026, Peoples R China 2.Chinese Acad Sci, Inst Plasma Phys, HFIPS, Hefei 230031, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Rong,Yang, Zhongshi,Li, Kedong,et al. Modeling of the impact of neon seeding on the detachment in EAST by SOLPS-ITER[J]. PHYSICS OF PLASMAS,2022,29. |
| APA | Wang, Rong.,Yang, Zhongshi.,Li, Kedong.,Xu, Guosheng.,Jia, Guozhang.,...&Wang, Liang.(2022).Modeling of the impact of neon seeding on the detachment in EAST by SOLPS-ITER.PHYSICS OF PLASMAS,29. |
| MLA | Wang, Rong,et al."Modeling of the impact of neon seeding on the detachment in EAST by SOLPS-ITER".PHYSICS OF PLASMAS 29(2022). |
入库方式： OAI收割
来源：合肥物质科学研究院
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