Numerical calculations of the dynamics of liners formed by copper vapors’

Abstract

The paper reports the calculations of the dynamics of fast copper liners. The implosion time is of the order of 80 ns. The problem is considered in a two-dimensional (axisymmetrical) statement. For simulation, a system of equations of electron magnetic hydrodynamics (EMH) is solved, using splitting into physical processes. At the first stage, the ideal MHD with a frozen-in magnetic field is considered. An implicit variation differential scheme is constructed for the solution of the equations of ideal two-temperature magnetic hydrodynamics. The dynamics of the liner splitting is calculated at different values of the Hall parameters. With an increased value of the Hall parameters, the character of the magnetic field’s penetration into plasma changes radically and the field’s “tongues” penetrating along one of the electrodes are formed.