Science, Area And Technology News 2022
The algorithm has been carr ied out within the Sy mPIC code, which is designed for high-efficiency massively-parallel PIC simulations in trendy clusters. The code has been utilized to hold out whole-device 6D kinetic simulation studies of tokamak physics. A self-consistent kinetic steady state for fusion plasma within the tokamak geometry is numerically discovered with a predominately diagonal and anisotropic stress tensor. The state also admits a steady-state sub-sonic ion flow in the range of 10 km s−1, agreeing with experimental observations and analytical calculations Kinetic ballooning instability in the self-consistent kinetic steady state is simulated. It is proven that high-n ballooning modes have bigger development rates than low-n global modes, and within the nonlinear section the modes saturate approximately in 5 ion transit occasions at the 2% degree by the E × B move generated by the instability. These results are consistent with early and recent electromagnetic gyrokine...