Abstract
Computer animations resulted from two-dimensional magnetohydrodynamic simulations of plasma merging have reproduced dynamic behaviors found in laboratory experiments. Specifically, the following features have been clearly shown, that is, 1) formation process of pressure profile by an induced plasma flow during counter-helicity merging of spheromaks, 2) topology change of field lines and their toroidal motion, and 3) magnetic island formation in a diffusion region during co-helicity injection.
