The modelling of edge carbon transport and emission on EAST tokamak under resonant magnetic perturbation (RMP) fields has been conducted with the three-dimensional edge transport code EMC3-EIRENE. The measured vertical distribution of CVI emission by the extreme ultraviolet spectrometer system for the perturbed case shows a reduction in the CVI emission by 20 % compared to the equilibrium case. The chord-integrated CVI emission can be reconstructed by EMC3-EIRENE modelling, which presents an increase in the CVI emission with RMP fields. The discrepancy between experiments and simulations has been investigated by parameter study to examine the sensitivity of the simulation results on the edge plasma conditions and the impurity perpendicular transport. It is found that the variation of edge plasma conditions for the equilibrium case cannot resolve the discrepancy in the CVI emission between simulations and measurements. The simulations with enhanced impurity perpendicular transport coefficient allows a reasonable agreement with the measured reduction of CVI emission.

中文翻译：

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共振磁扰动对 EAST 上边缘碳传输和排放的影响，采用 EMC3-EIRENE 建模

使用三维边缘传输代码 EMC3-EIRENE 进行了共振磁扰动 (RMP) 场下 EAST 托卡马克边缘碳传输和排放的建模。用极紫外光谱仪系统测量的 CVI 发射垂直分布在扰动情况下显示，与平衡情况相比，CVI 发射减少了 20%。弦整合的 CVI 发射可以通过 EMC3-EIRENE 建模重建，这表明 CVI 发射随着 RMP 场的增加而增加。通过参数研究研究了实验和模拟之间的差异，以检查模拟结果对边缘等离子体条件和杂质垂直传输的敏感性。发现平衡情况下边缘等离子体条件的变化不能解决模拟和测量之间 CVI 发射的差异。具有增强的杂质垂直传输系数的模拟与测量的 CVI 排放减少有合理的一致性。