EAST电子回旋波与低杂波双波协同的数值模拟  

Numerical Simulation of Double-wave Synergy between Electron Cyclotron Wave and Lower Hybrid Wave on EAST

作　　者：韦维 李妙辉 张霆 孙晓霞 WEI Wei;LI Miaohui;ZHANG Ting;SUN Xiaoxia(Hefei University of Technology,Hefei 230009,China;Institute of Plasma Physics,Chinese Academy of Sciences,Hefei 230031,China)

机构地区：[1]合肥工业大学,安徽合肥230009 [2]中国科学院等离子体物理研究所,安徽合肥230031

出　　处：《原子能科学技术》2018年第1期1-7,共7页Atomic Energy Science and Technology

基　　金：国家磁约束核聚变能发展研究专项资助项目(2015GB102000;2015GB102003);国家自然科学基金资助项目(11305211;11675214;11775259);中央高校基本科研业务费专项资金资助项目(JZ2015HGBZ0472)

摘　　要：为在EAST装置中优化电子回旋波与低杂波双波协同的电流驱动效率,从而获得更大的协同驱动电流以维持长脉冲运行,本文以双波协同驱动电流的物理机制为基础,运用模拟程序C3PO/LUKE对EAST参数下电子回旋电流驱动与低杂波电流驱动的协同效果进行了数值模拟计算,给出了协同电流和协同因子。计算结果表明:当两波驱动电流密度峰值的位置一致时协同效果最佳;而电子密度和电子温度的增加可能导致两波重叠区域的变化进而影响协同效果。In order to optimize the double-wave synergistic drive efficiency between electron cyclotron wave(ECW)and lower hybrid wave(LHW)on EAST,and obtain a larger synergy current to maintain a long pulse operation,some numerical simulations of synergistic effect with different EAST plasma parameters were carried out by using C3PO/LUKE code based on the physical mechanism of synergy.The synergy current and synergy factor were given.The calculation results show that the synergistic effect is the best when the positions of current density peak of the LHW and ECW overlap.And the increase of electron density and electron temperature can lead to the change of overlap region of two waves,and then affects synergistic effect.

关 键 词：EAST 双波协同 数值模拟 

分 类 号：O532.23[理学—等离子体物理]