5 papers · 1 filter
Excitation of toroidal Alfvén eigenmode by energetic particles in DTT and effect of negative triangularity
Guangyu Wei, Fulvio Zonca, Matteo Valerio Falessi +1
A linear gyrokinetic eigenvalue code is developed to study the stability of toroidal Alfvén eigenmode (TAE) in general axisymmetric toroidal geometry, with the self-consistent tre…
Indirect nonlinear interaction between toroidal Alfvén eigenmode and ion temperature gradient mode mediated by zonal structures
Qian Fang, Guangyu Wei, Ningfei Chen +3
The indirect nonlinear interactions between toroidal Alfvén eigenmode (TAE) and ion temperature gradient mode (ITG) are investigated using nonlinear gyrokinetic theory and balloon…
Effects of plasma nonuniformity on zero frequency zonal structure generation by drift Alfven wave instabilities in toroidal plasmas
Zhiyong Qiu, Guangyu Wei, Liu Chen +1
Effects of plasma nonuniformity on zero frequency zonal structure (ZFZS) excitation by drift Alfven wave (DAW) instabilities in toroidal plasmas are investigated using nonlinear gy…
Nonlinear saturation of reversed shear Alfven eigenmode via high-frequency quasi-mode generation
Zhiwen Cheng, Guangyu Wei, Lei Ye +1
A nonlinear saturation mechanism for reversed shear Alfven eigenmode (RSAE) is proposed and analysed, and is shown to be of relevance to typical reactor parameter region. The satur…
Calculation of toroidal Alfvén eigenmode mode structure in general axisymmetric toroidal geometry
Guangyu Wei, Matteo Valerio Falessi, Tao Wang +2
A workflow is developed based on the ideal MHD model to investigate the linear physics of various Alfvén eigenmodes in general axisymmetric toroidal geometry, by solving the coupl…