Unexpanded nonlinear electromagnetic gyrokinetic equations for magnetized plasmas  

作　　者：Liu CHEN Fulvio ZONCA Haotian CHEN 陈骝;Fulvio ZONCA;陈昊天(Institute for Fusion Theory and Simulation and Department of Physics,Zhejiang University,Hangzhou 310027,People’s Republic of China;Department of Physics and Astronomy,University of California,Irvine,CA 92697,United States of America;ENEA,Fusion and Nuclear Safety Department,C.R.Frascati,Via E.Fermi 45,00044 Frascati(Roma),Italy;Institute of Space Science and Technology,Nanchang University,Nanchang 330031.People's Republic of China)

机构地区：[1]Institute for Fusion Theory and Simulation and Department of Physics,Zhejiang University,Hangzhou 310027,People’s Republic of China [2]Department of Physics and Astronomy,University of California,Irvine,CA 92697,United States of America [3]ENEA,Fusion and Nuclear Safety Department,C.R.Frascati,Via E.Fermi 45,00044 Frascati(Roma),Italy [4]Institute of Space Science and Technology,Nanchang University,Nanchang 330031.People's Republic of China

出　　处：《Plasma Science and Technology》2020年第10期1-4,共4页等离子体科学和技术（英文版）

基　　金：supported by National Natural Science Fundation of China (Nos. 11235009 and 11905097);Fundamental Research Fund for Chinese Central Universities (No. 2019FZA3003);carried out within the framework of the EUROfusion Consortium and received funding from Euratom research and training programme 2014–2018 and 2019–2020 under Grant Agreement No. 633053 (Project No. WP19-ER/ENEA-05)。

摘　　要：Nonlinear electromagnetic gyrokinetic equations have been constructed without expanding the field variables into background and finite but small-amplitude fluctuating components. At the long-wavelength limit, these unexpanded nonlinear gyrokinetic equations recover the wellknown drift-kinetic equations. At the expanded limit, they recover the usual nonlinear gyrokinetic equations. These equations can therefore be applied to long-term simulations covering from microscopic to macroscopic spatial scales.

关 键 词：gyrokinetic theory plasma turbulence nonlinear phenomena 

分 类 号：O441.4[理学—电磁学]