典型文献
Frequency multiplication with toroidal mode number of kink/fishbone modes on a static HL-2A-like tokamak
文献摘要：
In the presence of energetic particles(EPs),the long-lived mode(LLM)frequency multiplication with n=1,2,3,or higher is often observed on HL-2A,where n is the toroidal mode number.Hybrid kinetic-MHD model simulations of the energetic particle(EP)driven kink/fishbone modes on a static HL-2A-like tokamak using NIMROD code find that when the background plasma pressure is relatively high,and the EP pressure and the beam energy are relatively low,the mode frequency increases almost linearly with EP pressure,and the frequency is proportional to n('frequency multiplication'),even in the absence of any equilibrium plasma rotation.In addition,the frequency multiplication persists as the safety factor at the magnetic axis qo varies.In the absence of EPs,the growth rate of the 1/1 mode is the largest;however,as the EP pressure increases,the growth rate of 2/2 modes or 3/3 modes becomes dominant,suggesting that higher-n modes are more vulnerable to EPs.These results may shed light on the understanding of the toroidal mode number dependence of kink/fishbone modes in the advanced scenarios of tokamaks with weak or reversed central magnetic shear.
文献关键词：
中图分类号：
作者姓名：
Zhihui ZOU;Ping ZHU;Charlson C KIM;Wei DENG;Xianqu WANG;Yawei HOU
作者机构：
CAS Key Laboratory of Geospace Environment and Department of Plasma Physics and Fusion Engi-neering,University of Science and Technology of China,Hefei 230026,People's Republic of China;International Joint Research Laboratory of Magnetic Confinement Fusion and Plasma Physics,State Key Laboratory of Advanced Electromagnetic Engineering and Technology,School of Electrical and Electronic Engineering,Huazhong University of Science and Technology,Wuhan 430074,People's Republic of China;Department of Engineering Physics,University of Wisconsin-Madison,Madison,Wisconsin 53706,United States of America;SLS2 Consulting,San Diego,California 92107,United States of America;Southwestern Institute of Physics,Chengdu 610041,People's Republic of China;Institute of Fusion Science,School of Physical Science and Technology,Southwest Jiaotong University,Chengdu 610031,People's Republic of China;School of Mathematics and Physics,Anhui Jianzhu University,Hefei 230601,People's Republic of China
文献出处：
引用格式：
[1]Zhihui ZOU;Ping ZHU;Charlson C KIM;Wei DENG;Xianqu WANG;Yawei HOU-.Frequency multiplication with toroidal mode number of kink/fishbone modes on a static HL-2A-like tokamak)[J].等离子体科学和技术（英文版）,2022(12):48-58
A类：
NIMROD,qo,tokamaks
B类：
Frequency,multiplication,toroidal,number,kink,fishbone,modes,static,HL,2A,like,In,presence,energetic,particles,EPs,long,lived,LLM,frequency,higher,often,observed,where,Hybrid,kinetic,MHD,model,simulations,driven,using,code,find,that,when,background,plasma,pressure,relatively,beam,energy,are,low,increases,almost,linearly,proportional,even,absence,any,equilibrium,rotation,addition,persists,safety,magnetic,axis,varies,growth,rate,largest,however,becomes,dominant,suggesting,more,vulnerable,These,results,may,shed,light,understanding,dependence,advanced,scenarios,weak,reversed,central,shear
AB值：
0.452415
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