托卡马克中高谐快波和低杂波协同电流驱动模拟研究  

Simulation Study of High Harmonic Fast Wave and Low Hybrid Wave Synergy Current Drive in Tokamak

作　　者：曹文虎 尹岚[2] 宋城邑 郑平卫 周方贝 马万坤 CAO Wenhu;YIN Lan;SONG Chengyi;ZHENG Pingwei;ZHOU Fangbei;MA Wankun(School of Nuclear Science and Technology,University of South China,Hengyang of Hunan Prov.421001,China;School of Mathematics and Science,University of South China,Hengyang of Hunan Prov.421001,China;School of Electrical Engineering,University of South China,Hengyang of Hunan Prov.421001,China;School of Resource Environment and Safety Engineering,University of South China,Hengyang of Hunan Prov.421001,China)

机构地区：[1]南华大学核科学技术学院,湖南衡阳421001 [2]南华大学数理学院,湖南衡阳421001 [3]南华大学电气工程学院,湖南衡阳421001 [4]南华大学资源环境与安全工程学院,湖南衡阳421001

出　　处：《核科学与工程》2023年第5期1167-1173,共7页Nuclear Science and Engineering

基　　金：国家磁约束核聚变能发展研究专项(2022YFE03090001);国家自然科学基金资助项目(11805096);湖南省教育厅优秀青年项目(20B502);湖南省自然科学基金项目(2022JJ50157)。

摘　　要：基于全超导托卡马克EAST上的低βe运行参数,采用射线追踪和Fokker-Planck方程程序模拟研究由高场侧发射的高谐快波(HHFW)和低杂波(LHW)联合电流驱动。研究结果表明,满足一定的条件,高场侧发射的HHFW和LHW存在较大的协同效应,且从靠近芯部到离轴较宽的区域内均有正协同效应,能有效提升电流驱动效率,改善电流分布,通过分析其物理机制发现协同效应发生与两支波共振区的速度空间位置关系密切相关,并进一步分析研究了平行折射率、波频率、波功率等参数对两波联合电流驱动协同效应的影响。Based on the lowβe operating parameters on the fully superconducting Tokamak EAST, ray tracing and the Fokker-Planck equation codes are used to simulate the combinedcurrent drive of high harmonic fast wave (HHFW) and low hybrid wave (LHW) with high fieldside emission. The results show that under certain conditions, there is a large synergistic effectbetween the HHFW and LHW emitted from the high-field side, and there is a positivesynergistic effect from close to the core to the wider off -axis region, which can effectivelyimprove the current drive efficiency and improve the current distribution. The physicalmechanism is analyzed and it is found that the synergistic effect is closely related to the spatialposition of the velocity in the resonance region of the two waves. In addition, the effects ofparallel refractive index, wave frequency, wave power and other parameters on the synergisticeffect of the two-wave joint current drive are also studied.

关 键 词：低杂波 高谐快波 协同效应 电流驱动 托卡马克 

分 类 号：TL11[核科学技术—核能科学]