Abstract
In this paper, a relaxation magnetohydrodynamic model is used to study magnetic reconnection phenomena in pulsed-power-driven Z-pinch inverse wire arrays. We focus on certain characteristics of two distinct modes that differ by resistivity. A magnetic field alignment that is both anti-parallel and open is created in high-resistivity mode. This produces a pronounced slow/standing shock wave and outflows can be accelerated to super-magnetosonic velocities. In low-resistivity mode, the entire magnetic field is closed and there is no pronounced slow/standing shock wave. The outflow velocity along the neutral line is accelerated to magnetosonic velocities between the two magnetic islands, but slows afterwards. It is difficult to achieve steady or quasi-steady magnetic reconnection in pulsed-power-driven Z-pinch inverse wire arrays.
Highlights
Magnetic reconnection[1] is the process whereby magnetic energy rapidly transforms into directional kinetic and internal energy in a plasma while magnetic field line topological configurations change
There is no direct correlation between the moments when the pulsed-power-driving source peak occurs and when magnetic reconnection peak occurs
This indicates that the timing characteristics of the reconnection field reflect the intrinsic dynamics of magnetic reconnection
Summary
Magnetic reconnection[1] is the process whereby magnetic energy rapidly transforms into directional kinetic and internal energy in a plasma while magnetic field line topological configurations change. It is a fundamental process encountered in space, the laboratory, and astrophysics.[2,3,4,5,6,7] Plasma kinetics and structure play important roles in magnetic reconnection. Is scattered across various symposium abstracts.[20,24,28] This paper uses a relaxation magnetohydrodynamic (MHD) model to numerically study magnetic reconnection in pulsed-power-driven Z-pinch inverse wire arrays. We performed scanning modelling with a variety of combinations of loading mass and plasma resistivity
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