Simulation of ablating wire in wire array Z-pinch

Summary form only given. Ablation of a wire in the wire-array Z-pinch discharged on MAGPIE has been simulated in a two-dimensional domain of finer grid resolution using a magnetohydrodynamic code, GORGON. For accurate description of ohmic heating at high densities, an electrical conductivity model for nonideal plasma has been incorporated in the code. Emissions of line radiation as well as blackbody radiation are taken into account based on an astrophysical model in order to show the radiation cooling effect. Starting from the wire core assumed as warm dense plasma initially, the expansion and implosion dynamics of coronal plasma are demonstrated and basic plasma parameters are calculated as a function of time. Computed profiles of electron density are compared with data measured by laser interferometer at a certain point of time. The level of electron densities predicted by simulation appears reasonably compatible with measurements despite some discrepancies found in regions away from the initial wire core position. A few physical points are discussed regarding nonideal plasma and radiation emission models.