Localized compressional self-heating in magnetic islands

A spontaneous heating process is found to arise in a system where magnetic island present due linearly unstable tearing mode. The parity, the relative phases and structure of fields determined by mode cause compression plasma direction parallel field heat vicinity separatrix nonlinear phase. Using six-field electromagnetic fluid model, be both two-dimensional single-helicity three-dimensional multi-helicity simulations with symmetric asymmetric equilibrium profiles. noteworthy feature model that higher-order terms responsible for are retained equations. believed linked experimental observations localized hot-spots on externally induced islands.