Research on the spatio-temporal characteristics of high energy pulsed plasma jets

This research proposes a high-energy pulsed plasma jet for producing highly dynamic and huge gradient plasma. The injected plasma enters the plasma sheath, and the stealth of the high-speed vehicle is achieved by modulating the dynamics of the plasma sheath electron density. The characteristics of the plasma were extensively diagnosed using current-voltage measurements, high-speed cameras, and optical emission spectroscopy. This includes the electrical parameters of the plasma and its spatial and temporal distribution. The deposited energy rises and then falls as the pressure rises. The high-speed camera determines that the plasma injection process lasted 160.04 mu s. The electron temperature ranges from 0.68 to 1 eV. The electron density ranges from 2.5 x 10(16) to 2.1 x 10(17) cm(-3) with an increasing trend from 0 to 12 mu s and a decreasing trend from 12 to 28 mu s. As the axial position rises, the electron density gradually decays. The analysis of high-energy pulsed plasma jets provides the framework for future research into active stealth in high-speed vehicles. Published under an exclusive license by AIP Publishing.

Automated summary

This research introduces a high-energy pulsed plasma jet that can generate highly dynamic and steep plasma gradients. By modulating the dynamics of the plasma sheath electron density, the high-speed vehicle can achieve stealth. The characteristics of the plasma were extensively diagnosed through various measurements and observations. The analysis of high-energy pulsed plasma jets provides a framework for future research on stealth technology in high-speed vehicles.