A 1-Dlinear gyrokinetic code called AWECS is developed to study the kinetic excitation of Alfvenic instabilities in a high-β tokamak plasma,with β being the ratio of thermal to magnetic pressure.It is designed to de...A 1-Dlinear gyrokinetic code called AWECS is developed to study the kinetic excitation of Alfvenic instabilities in a high-β tokamak plasma,with β being the ratio of thermal to magnetic pressure.It is designed to describe physics associated with a broad range of frequencies and wavelengths.For example,AWECS is capable of simulating kinetic ballooning modes,Alfvenic ion-temperature-gradient-driven modes,as well as Alfven instabilities due to energetic particles.In addition,AWECS may be used to study drift-Alfven instabilities in the low-β regime.Here,the layout of the code and the numerical methods used are described.AWECS is benchmarked against other codes and a convergence study is carried out.展开更多
基金This research is supported by U.S.DoE Grant DE-AC02-CH0-3073,NSF Grant ATM-0335279,and in part by SciDAC GSEP.
文摘A 1-Dlinear gyrokinetic code called AWECS is developed to study the kinetic excitation of Alfvenic instabilities in a high-β tokamak plasma,with β being the ratio of thermal to magnetic pressure.It is designed to describe physics associated with a broad range of frequencies and wavelengths.For example,AWECS is capable of simulating kinetic ballooning modes,Alfvenic ion-temperature-gradient-driven modes,as well as Alfven instabilities due to energetic particles.In addition,AWECS may be used to study drift-Alfven instabilities in the low-β regime.Here,the layout of the code and the numerical methods used are described.AWECS is benchmarked against other codes and a convergence study is carried out.
