AEGIS-K code for linear kinetic analysis of toroidally axisymmetric plasma stability

作者：Zheng L J^*; Kotschenreuther M T; Van Dam J W

来源：Journal of Computational Physics, 2010, 229(10): 3605-3622.

DOI：10.1016/j.jcp.2010.01.017

• Gyrokinetics
• Magnetohydrodynamics
• Stability
• AEGIS
• AEGIS-K
• Adaptive
• Eigen-value
• Shooting
• Tokamak
• Plasma

A linear kinetic stability code for tokamak plasmas. AEGIS-K (Adaptive EiGenfunction Independent Solutions-Kinetic), is described The AEGIS-K code is based on the newly developed gyrokinetic theory [LJ Zheng, MT Kotschenreuther, JW Van Darn, Phys Plasmas 14 (2007) 072505] The success in recovering the ideal magnetohydrodynamics (MHD) from this newly developed gyrokinetic theory in the proper limit leads the AEGIS-K code to be featured by being fully kinetic in essence but hybrid in appearance The radial adaptive shooting scheme based on the method of the independent solution decomposition in the MHD AEGIS code [LJ Zheng, MT Kotschenreuther. J Comp Phys 211 (2006) 748] is extended to the kinetic calculation A numerical method is developed to solve the gyrokinetic equation of lowest order for the response to the independent solutions of the electromagnetic perturbations, with the quasineutrality condition taken into account A transform method is implemented to allow the pre-computed Z-i e. the plasma dispersion function) to be used to reduce the integration dimension in the moment calculation and to assure the numerical accuracy in determining the wave-particle resonance effects Periodic boundary condition along the whole banana orbit is introduced to treat the trapped particles, in contrast to the usual reflection symmetry conditions at the banana tips Due to the adaptive feature, the AEGIS-K code is able to resolve the coupling

• 出版日期2010-5-20