Visualization of Plasma in Hall Thrusters by Particle Simulation

Hall thruster is an electric propulsion device in which high thrust efficiency is achieved in the middle specific impulse. In previous works based on experiments and numerical analyses, the dependency of the 20 kHz-range discharge current oscillation amplitude on anode orifice configuration has been...

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Bibliographic Details
Published inJournal of the Visualization Society of Japan Vol. 27; no. Supplement2; pp. 159 - 160
Main Authors MIYASAKA, Takeshi, SHIBATA, Yuuki, ASATO, Katuo
Format Journal Article
LanguageJapanese
Published The Visualization Society of Japan 2007
Subjects
Particle simulation
Plasma
Space propulsion
Thruster
Visualization
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Summary:Hall thruster is an electric propulsion device in which high thrust efficiency is achieved in the middle specific impulse. In previous works based on experiments and numerical analyses, the dependency of the 20 kHz-range discharge current oscillation amplitude on anode orifice configuration has been analyzed. Using the results of neutral direct-simulations, the influence of the neutral distribution on the amplitude has been investigated. In the present work, for the purpose of more detail investigation of the influence of the neutral distribution, the ionization and acceleration process in the acceleration channel for various orifice diameters were analyzed using a hybrid-PIC code. The results of visualizations of the ionization rate distribution, which influences the oscillation amplitude, show that the smaller orifice causes the ionization concentration.
ISSN:0916-4731
1346-5260
1884-037X
DOI:10.3154/jvs.27.Supplement2_159