Modeling the Exploding Copper Wire in Order to Generate a Toroidal Plasmoid

Articles in Press

Document Type : Research Paper

Authors

Electrical-Electronic Engineering, Electricity and electronics, Malek-Ashtar university of technology, Tehran, Iran

Abstract

Stimulation of a thin copper wire with a high current and a short rise time is a well-known phenomenon that can lead to the wire explosion and consequently create plasma similar to arc discharge. In this paper, the behavior of an exploding wire is investigated using the 4th-5th order Runge-Kutta numerical method in MATLAB to calculate electron density. The proposed model includes a capacitor bank, a stray resistor and an inductor in the circuit, and a variable resistor that represents the exploding wire. The results show that the behavior of the exploding wire can be dependent on various factors such as the current applied to the wire, the current rise time, and the wire diameter. Finally, a two-stage structure consisting of two pulsed power circuits is presented, the output of which will be a toroidal plasmoid. This plasmoid is created by applying a strong current pulse to the primary plasma. Numerical calculations indicate a plasma electron density in the range of 1018-1019/cm⁻³, which agrees with experimentally reported values in previous studies. Plasmoid is actually a coherent combination of plasma and magnetic fields that has many applications, such as being used as defense cannon against missile attacks and as an ignition source for turbines, combustion engines, and rocket engines.

Keywords

Main Subjects

Journal of Modeling in Engineering

Articles in Press, Accepted Manuscript
Available Online from 05 October 2025

Files

History

  • Receive Date: 25 June 2024
  • Revise Date: 06 September 2025
  • Accept Date: 15 September 2025

Share

How to cite

Statistics