Improvement of the low frequency oscillation model for Hall thrusters | Zendy

Chunsheng Wang | Zendy; Huashan Wang | Zendy

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Improvement of the low frequency oscillation model for Hall thrusters

Author(s) -

Chunsheng Wang,

Huashan Wang

Publication year - 2016

Publication title -

aip advances

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.421

H-Index - 58

ISSN - 2158-3226

DOI - 10.1063/1.4961061

Subject(s) - oscillation (cell signaling) , acceleration , low frequency oscillation , ionization , physics , ion , electron , electric field , computational physics , atomic physics , current density , hall effect , mechanics , classical mechanics , magnetic field , chemistry , quantum mechanics , biochemistry , power (physics) , electric power system

The low frequency oscillation of the discharge current in Hall thrusters is a major aspect of these devices that requires further study. While the existing model captures the ionization mechanism of the low frequency oscillation, it unfortunately fails to express the dynamic characteristics of the ion acceleration. The analysis in this paper shows this is because of the simplification of the electron equation, which affects both the electric field distribution and the ion acceleration process. Additionally, the electron density equation is revised and a new model that is based on the physical properties of ion movement is proposed

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