Disc Explosive Magnetic Generator and Quasi-Spherical Liner Simulations with a 1D Code

The paper briefly discusses the problem setup for a 1D code that offers wide functionality for simulating electrophysical facilities with different ponderomotive units (PU) intended for studies in the area of high energy density physics and materials properties. 1D magneto-hydrodynamic approximation is used, which also enables simulations of essentially two-dimensional units, such as disc explosive magnetic generators (DEMG), quasi-spherical liners etc. Examples of such simulations are given.

INTRODUCTION

High-current electrophysical facilities, such as DEMGs (with MA peak currents), helical explosive magnetic generators (HEMG) and Shiva Star and Atlas capacitor banks , see e.g. [1]–[8], are used to carry out research in different areas of high energy density physics. Such facilities allow studying Hugoniots of materials at up to 3000 GPa pressures [1]–[2], isentropes at pressures of GPa [3] and more, and dynamic strength of materials at up to GPa pressures [4]–[5] based on the Rayleigh-Tailor instability growth in cylindrical liner systems (see Fig. 1), etc. Experiments with quasi-spherical liners are conducted, see e.g. [6]–[7]. Figure 1. Schematic diagram of the DEMG + PU system and its diagnostic suite in the RHSR-0,1,2 experiments.