Electromagnetic High Frequency Gyrokinetic Particle-in-Cell Simulation

作     者：R.A.Kolesnikov W.W.Lee H.Qin 

作者机构：Plasma Physics LaboratoryPrinceton UniversityP.O.Box 451PrincetonNew Jersey 08543USA 

出 版 物：《Communications in Computational Physics》 (计算物理通讯（英文）)

年 卷 期：2008年第4卷第8期

页      面：575-591页

核心收录：

学科分类：080704[工学-流体机械及工程] 080103[工学-流体力学] 08[工学] 0807[工学-动力工程及工程热物理] 0801[工学-力学（可授工学、理学学位）] 

基　　金：This work was supported by the Multi-Scale Gyrokinetics project as a part of the U.S.DoE ASCR Multiscale Mathematics Research and Education Program 

主　　题：Gyrokinetics magnetized plasmas plasma kinetic equations 

摘      要：Using the gyrocenter-gauge kinetic theory,an electromagnetic version of the high frequency gyrokinetic numerical algorithm for particle-in-cell simulation has been *** new algorithm,being an alternative to a direct Lorentz-force simulation,offers an efficient way to simulate the dynamics of plasma heating and current drive with radio frequency *** formalism enables separation of gyrocenter and gyrophase motions of a particle in a strong magnetic *** this point of view,a particlemay be viewed as a combination of a slow gyrocenter and a quickly changing Kruskal *** this approach,the nonlinear dynamics of high frequency waves is described by the evolution of Kruskal rings based on first principles *** efficiency of the algorithm is due to the fact that the simulation particles are advanced along the slow gyrocenter orbits,while the Kruskal rings capture fast gyrophase ***,the gyrokinetic formalism allows separation of the cold response from kinetic effects in the current,which allows one to use much smaller number of particles than what is required by a direct Lorentz-force ***,the new algorithm offers the possibility to have particle refinement together with mesh refinement,when *** illustrate the new algorithm,a simulation of the electromagnetic low-hybrid wave propagating in inhomogeneous magnetic field is presented.