Development of a gyrokinetic-MHD energetic particle simulation code Part II: Linear simulations of Alfv\'en eigenmodes driven by energetic particles

Autor:	Liu, Z. Y., Jiang, P. Y., Liu, S. Y., Zhang, L. L., Fu, G. Y.
Rok vydání:	2024
Předmět:	Physics - Plasma Physics
Druh dokumentu:	Working Paper
Popis:	We have developed a hybrid code GMEC: Gyro-kinetic Magnetohydrodynamics (MHD) Energetic-particle Code that can numerically simulate energetic particle-driven Alfv\'en eigenmodes and energetic particle transport in tokamak plasmas. In order to resolve the Alfv\'en eigenmodes with high toroidal numbers effectively, the field-aligned coordinates and meshes are adopted. The extended MHD equations are solved with five-points finite difference method and fourth order Runge-Kutta method. The gyrokinetic equations are solved by particle-in-cell (PIC) method for the perturbed energetic particle pressures that are coupled into the MHD equations. Up to now, a simplified version of the hybrid code has been completed with several successful verifications including linear simulations of toroidal Alfv\'en eigenmodes and reversed shear Alfv\'en eigenmodes. Comment: 11 pages, 17 figures
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/2402.14357 Zobrazit plný text záznamu View this record from Arxiv