个人信息Personal Information
教授
博士生导师
硕士生导师
任职 : 《Plasma Science and Technology》学术期刊编委
性别:男
毕业院校:大连工学院
学位:硕士
所在单位:物理学院
学科:等离子体物理
办公地点:主楼东侧楼(物理系楼)304室
联系方式:0411-84707981
电子邮箱:wangdez@dlut.edu.cn
EMC3-EIRENE modelling of edge plasma and impurity emissions compared with the liquid lithium limiter experiment on EAST
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论文类型:期刊论文
发表时间:2018-10-01
发表刊物:NUCLEAR FUSION
收录刊物:SCIE
卷号:58
期号:10
ISSN号:0029-5515
关键字:impurity transport; edge plasma; liquid lithium limiter; EAST
摘要:Studies of edge plasma and impurity transport with the toroidally and poloidally localized liquid lithium limiter (LLL) on EAST have been performed by the three-dimensional (3D) edge transport code EMC3-EIRENE. The transport behavior of the Li1+ and Li2+ ions shows a non-axisymmetric distribution in the toroidal direction while an axisymmetric distribution is obtained for the Li3+ ions. The spatial structure of the charge state and excitation radiation patterns of lithium impurity can be understood by using field line tracing, which shows that the Li ions with different charge states exhibit different parallel transport behaviors. The 3D line-integrated LiII emission pattern simulated by EMC3-EIRENE shows a reasonable qualitative agreement with the experiment results measured by the CCD camera system on EAST. An unresolved issue in the LLL experiment is that the species emitting the strong visible spectrum observed around the edge plasma region cannot be distinguished by the current experimental diagnostics on EAST. The detailed numerical analysis of the carbon and deuterium emissions has been carried out to resolve this issue. The simulated deuterium emission pattern shows the same qualitative behavior as the experimental observation at the lower divertor region. The strong radiation experimentally observed at the upper divertor region is perhaps due to the mixing of the lithium and deuterium emissions.