Z. X. Wen, G. D. Gao, B. Liu, Y. T. Chen, L. Z. Liu, S. Y. Dai
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Impacts of Lithium Injection Positions on Lithium Transport and Heat Flux on EAST with EMC3-EIRENE Modelling
The modelling of the edge lithium (Li) transport and heat flux deposition on divertor targets under different poloidal Li injections has been performed on EAST with the three-dimensional (3D) edge transport code EMC3-EIRENE. Four injected positions of Li impurity (including divertor and upstream injections) are investigated to check the Li density distribution and its impacts on the heat flux deposition profiles. The simulation results show that the Li injections near the strike points lead to small spatial amounts of Li ions compared to the upstream injections. The energy dissipation by Li impurity for different poloidal injections has been analysed by varying the upstream electron density. It is found that the increased upstream electron density leads to a slightly enhanced exhausted power of Li impurity for upstream injections while an evidently reduced energy loss for divertor injections. Moreover, the asymmetric distributions of heat flux deposition on target plates are obtained for divertor injections, while the symmetric distributions of heat flux are attained for upstream injections.
期刊介绍：
The Journal of Fusion Energy features original research contributions and review papers examining and the development and enhancing the knowledge base of thermonuclear fusion as a potential power source. It is designed to serve as a journal of record for the publication of original research results in fundamental and applied physics, applied science and technological development. The journal publishes qualified papers based on peer reviews.
This journal also provides a forum for discussing broader policies and strategies that have played, and will continue to play, a crucial role in fusion programs. In keeping with this theme, readers will find articles covering an array of important matters concerning strategy and program direction.
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