5 papers · 1 filter
On How Zonal Fields Suppress Reversed Shear Alfvén Eigenmode in Tokamak Plasmas
Ruirui Ma, Pengfei Liu, Liu Chen +2
Employing both nonlinear gyrokinetic simulations and theoretical analyses, we have discovered the novel result that, with energetic particle dynamics kept linear, the nonlinear sup…
Cross-scale Interaction between Microturbulence and Fishbone in Fusion Plasmas
Yuehao Ma, Bin Zhang, Pengfei Liu +7
Global gyrokinetic simulations are performed for the first time to investigate cross-scale interactions between electromagnetic ion temperature gradient (ITG) turbulence and fishbo…
Electromagnetic turbulence in EAST plasmas with internal transport barrier
Yuehao Ma, Pengfei Liu, Jian Bao +2
In this study, global nonlinear electromagnetic gyrokinetic simulations are conducted to investigate turbulence in the Internal transport barrier (ITB) region of the EAST tokamak d…
Saturation of fishbone instability through zonal flows driven by energetic particle transport in tokamak plasmas
G. Brochard, C. Liu, X. Wei +17
Gyrokinetic and kinetic-MHD simulations are performed for the fishbone instability in the DIII-D discharge #178631, chosen for validation of first-principles simulations to predict…
Helically-trapped electron mode in optimized stellarator
Javier H Nicolau, Xishuo Wei, Pengfei Liu +2
Global gyrokinetic simulations find a strong helically-trapped electron mode (HTEM) driven by density gradients in the optimized stellarator W7-X fusion experiment. The eigenmode s…