774 / 2019-07-15 13:01:21

MHD Analyses for the Physical Designs of CFETR and FRC Neutron Source

全体主题 > 磁约束核聚变理论与模拟

Steady-state low density and pulsed high density fusion devices have been two actively explored paths towards achievement of fusion energy through magnetic confinement. Along the paths, CFETR (China Fusion Engineering Test Reactor) and FRC-NS (Field Reversed Configuration Neutron Source) are two major projects currently under intensive physical and engineering designs in China. Among all the physics involved, an adequate understanding and evaluation of the MHD physics of those two devices is considered as the foundation to the physics designs of both projects. For CFETR, efforts have been devoted to the 1) identification of (un)stable regimes of macroscopic tokamak modes including NTM, LM, RWM, and ELM; 2) evaluation of the requirement on ECCD system for the suppression of NTM; 3) simulation of the gas or pellet injection schemes for mitigation of major disruptions. For FRC-NS, simulations have been applied to the modeling of formation, translation, merging, compression, and instabilities of the designed FRC plasma, using single-fluid, two-fluid, and kinetic-MHD models. In this report, we briefly review the progress and status of the MHD analysis efforts for the physical designs of CFETR and FRC neutron source.