Investigations of lithium transport in H-mode plasma of EAST tokamak have been performed by the three-dimensional fluid code EMC3-EIRENE. The simulation results show that the toroidally-localized lithium injection at the low field side (LFS) leads to a toroidally non-axisymmetric distribution of the Li¹⁺ and Li²⁺ ions. The field line tracing approach is utilized to carry out a detailed study on the distributions of the Li¹⁺ and Li²⁺ ions. It is found that Li¹⁺ ions mainly reside at the LFS while Li²⁺ ions can transport from LFS to the high field side. The relationship between mean free path and connection length for Li¹⁺ and Li²⁺ ions has been discussed. The 3D line-integration images of deuterium and lithium emission spectra modelled by EMC3-EIRENE are in qualitative consistency with the experiment results.

通过三维流体代码EMC3-EIRENE进行了EAST托卡马克H型等离子体中锂传输的研究。仿真结果表明，在低场侧（LFS）进行环形局限的锂注入会导致Li ¹⁺和Li ²⁺离子的环形非轴对称分布。利用场线追踪法对Li ¹⁺和Li ²⁺离子的分布进行了详细的研究。发现Li ¹⁺离子主要位于LFS，而Li ²⁺离子可以从LFS传输到高电场侧。Li ¹⁺和Li ^2+的平均自由程与连接长度之间的关系离子已经讨论过。EMC3-EIRENE建模的氘和锂发射光谱的3D线积分图像与实验结果在质量上保持一致。