Simulations of Disc Explosive Magnetic Generators and Quasi-Spherical Liners with a 1D Code

Summary form only given. VNIIEF widely uses a 1D (MHD) one-dimensional code being developed based on the magnetohydrodynamic approximation for simulating electrophysical facilities with different ponderomotive units (PU) intended for studies in the area of high energy density physics and materials properties. Pre-shot simulations of the facilities using the code generally provide high accuracy of current prediction, which is close to the accuracy of current measurements with B-dots. The paper briefly discusses the problem setup for this 1D (MHD) code, which offers wide functionality for simulating: (1) helical EMG and DEMG, capacitor banks (Pegasus-2, Shiva Star, Atlas, etc.), inductive storage devices, and other energy sources; (2) explosive opening and closing switches (EOS and ECS); electrically exploding foil and plasma-flow opening switches (EOS and PES): two-stage opening switches (EOS + FOS, FOS₁ + FOS₂, etc.), and other opening and closing switches; (3) coaxial, radial, conic and other transmission lines; (4) cylindrical and quasi-spherical liner PUs, magnetic-cushion liner systems and varied-mass liners, other axially symmetric loads (with elasto-plasticity, thermal conductivity and radiation transfer).

VNIIEF widely uses a ID (MHD) one-dimensional code being developed based on the magnetohydrodynamic approximation for simulating electrophysical facilities with different ponderomotive units (PU) intended for studies in the area of high energy density physics and materials properties.