AbstractA hollow indented anode is proposed for increasing the neutral gas density in a discharge channel, in order to improve the performance of the thruster. The experimental results show that a hollow indented anode structure can effectively improve the performance, compared to a hollow straight anode under similar operating conditions, in terms of thrust, propellant utilization, ionization rate, and anode efficiency. Furthermore, simulations show that the indented anode can effectively increase the neutral gas density in a discharge channel and on the centerline of the channel, compared to a hollow straight anode. In addition, it can increase the ionization rate in the channel and the pre-ionization in the anode. Therefore, the hollow indented anode could be considered as an important design idea for improving thruster performance.
HighlightsA hollow indented anode is proposed for increasing the neutral gas density.A hollow indented anode can improve the performance of the thruster.Effects of proposed hollow indented anode is experimental and numerical verified.
A 200 W Hall thruster with hollow indented anode
Acta Astronautica ; 139 ; 521-527
2017-08-01
7 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
A 200 W Hall thruster with hollow indented anode
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