Unexpanded nonlinear electromagnetic gyrokinetic equations for magnetized plasmas

作     者：陈骝 Fulvio ZONCA 陈昊天 Liu CHEN;Fulvio ZONCA;Haotian CHEN

作者机构：Institute for Fusion Theory and Simulation and Department of PhysicsZhejiang UniversityHangzhou 310027People’s Republic of China Department of Physics and AstronomyUniversity of CaliforniaIrvineCA 92697United States of America ENEAFusion and Nuclear Safety DepartmentC.R.FrascatiVia E.Fermi 4500044 Frascati(Roma)Italy Institute of Space Science and TechnologyNanchang UniversityNanchang 330031.People's Republic of China 

出 版 物：《Plasma Science and Technology》 (等离子体科学和技术（英文版）)

年 卷 期：2020年第22卷第10期

页      面：1-4页

核心收录：

学科分类：0809[工学-电子科学与技术（可授工学、理学学位）] 08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0702[理学-物理学] 

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)。 

主　　题：gyrokinetic theory plasma turbulence nonlinear phenomena 

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.