1. Computer simulations of Hall thrusters without wall losses designed using two permanent magnetic rings
- Author
-
Peng Wuji, Yu Daren, Ding Yongjie, Li Hong, Sun Guo-Shun, and Wei Liqiu
- Subjects
010302 applied physics ,Materials science ,Acoustics and Ultrasonics ,Computer simulation ,Electron ,Mechanics ,Condensed Matter Physics ,01 natural sciences ,010305 fluids & plasmas ,Surfaces, Coatings and Films ,Electronic, Optical and Magnetic Materials ,Magnetic field ,Magnetic circuit ,Acceleration ,Nuclear magnetic resonance ,Physics::Plasma Physics ,Magnet ,Ionization ,0103 physical sciences ,Communication channel - Abstract
A type of Hall thruster without wall losses is designed by adding two permanent magnet rings in the magnetic circuit. The maximum strength of the magnetic field is set outside the channel. Discharge without wall losses is achieved by pushing down the magnetic field and adjusting the channel accordingly. The feasibility of the Hall thrusters without wall losses is verified via a numerical simulation. The simulation results show that the ionization region is located in the discharge channel and the acceleration region is outside the channel, which decreases the energy and flux of ions and electrons spattering on the wall. The power deposition on the channel walls can be reduced by approximately 30 times.
- Published
- 2016