Impacts of resonant magnetic perturbations on edge carbon transport and emission on EAST with EMC3-EIRENE modelling

被引：13
作者：
Dai, S. Y. [1 ,2 ]
Zhang, H. M. [3 ]
Lyu, B. [3 ]
Wang, L. [3 ]
Feng, Y. [4 ]
Wang, Z. X. [1 ]
Wang, D. Z. [1 ]
机构：
[1] Dalian Univ Technol, Sch Phys, Minist Educ, Key Lab Mat Modificat Laser Ion & Electron Beams, Dalian 116024, Peoples R China
[2] Dalian Univ Technol, DUT BSU Joint Insititute, Dalian 116024, Peoples R China
[3] Chinese Acad Sci, Insititute Plasma Phys, Hefei 230031, Peoples R China
[4] Max Planck Inst Plasma Phys, D-17491 Greifswald, Germany
来源：
JOURNAL OF PLASMA PHYSICS | 2020年 / 86卷 / 03期
基金：
中国国家自然科学基金;
关键词：
plasma simulation; fusion plasma; IMPURITY TRANSPORT; STOCHASTIC LAYER; HEAT-FLUX; TOKAMAKS; PARTICLE; POWER;
D O I：
10.1017/S0022377820000422
中图分类号：
O35 [流体力学]; O53 [等离子体物理学];
学科分类号：
070204 ; 080103 ; 080704 ;
摘要：
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.
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页数：20
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