-
Author(s):
T. Hayashi, N. Mizuguchi, T. Sato and the Complexity Simulation Group
-
Title:
Numerical Simulation of Internal Reconnection Event in Spherical Tokamak
Date of publication:
July 1999
-
Key words:
spherical tokamak, Internal Reconnection Event, plasma relaxation, computer simulation, thermal quench
-
Abstract:
Three dimensional magnetohydrodynamic simulations are executed in a full toroidal geomety to clarify the physical mechanisms of the Internal Reconnection Event (IRE), which is observed in the spherical tokamak experiments. The simulaion results reproduce several main properties of IRE. Comparison between the numerical results and experimental observation indicates fairly good agreements regarding nonlinear behavior, such as appearance of localized helical distortion, appearance of characteristic conical shape in the pressure profile during thermal quench, and subsequent appearance of the m=2/n=l type helical distortion of the torus.
-
|
