Abstract
Ionic wind could convert electrical energy to kinetic energy with no need rotating parts, which has attracted wide attention in the field of propulsion, the improvement method of ionic wind thruster performance has been a potential research direction. In this paper, an auxiliary ring electrode structure is designed to adjust the ionization and acceleration process of particles. The reduced electric field and discharge characteristics are investigated to demonstrate the influence of ring electrode to the energy and spatial distribution of particles. Besides, the ionic wind thrust parameters such as ionic wind velocity profiles, thruster and electrical-to-kinetic energy conversion efficiency are further studied to illustrate the improvement effect of auxiliary ring electrode on ionic wind characteristics. These phenomena are investigated by considering the ionization and acceleration process of particles under the effect of auxiliary ring electrode. The results illustrate that the arrangement of auxiliary ring electrode would be a method to improve the ionic wind thrust performance.
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