The Implementation of Magnetic Islands in Gyrokinetic Toroidal Code

• 作 者: 江澎 林志宏 Ihor HOLOD 肖池阶
• 机 构: Fusion Simulation Center and State Key Laboratory of Nuclear Physics and Technology,Peking Universit
• 出 处: Plasma Science and Technology
• 发表日期: 2016年02期
• 关键词: trapped island verified perturbation perturbed partially instability radial cont

The implementation of magnetic islands in gyrokinetic simulation has been verified in the gyrokinetic toroidal code(GTC).The ion and electron density profiles become partially flattened inside the islands.The density profile at the low field side is less flattened than that at the high field side due to toroidally trapped particles in the low field side,which do not move along the perturbed magnetic field lines.When the fraction of trapped particles decreases,the density profile at the low field becomes more flattened.

The implementation of magnetic islands in gyrokinetic simulation has been verified in the gyrokinetic toroidal code (GTC). The ion and electron density profiles became partially flattened inside the islands. The density profile at the low field side is less flattened than that at the high field side due to toroidally trapped particles in the low field side, which do not move along the perturbed magnetic field lines. WHEN the fraction of trapped particles decreases, the density profile at the low field becomes more flattened.