Research progress on the numerical simulation of Z-pinch implosion using mared code

The physical scheme of the MARED code, a two-dimensional three-temperature radiation magneto-hydrodynamics code for Z-pinch implosion simulation, is described. Results from the one- and two-dimensional calculation tests demonstrate the MARED code is able to simulate Z-pinch implosions of a wide range of accelerator and load parameters. It is able to present the primary dynamic characteristics of Z-pinch implosions, and the calculated images and rules qualitatively agree with the theoretical analyses and experimental observations. Compared with the experimental data, simulation results show that, under the same condition, the tungsten wire-array implosion has higher X-ray radiation power output than aluminum wire arrays. With same load parameters, the X-ray radiation power increases with the load current. Under the certain drive condition, the X-ray output decreases with the load mass. The MARED code is also used to simulate the radiation field formation of the wire-array filled with foam. The preliminary results on the Z machine are qualitative consistent with the simulation results from the Sandia laboratory. (authors)