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Title: Improvement of the low frequency oscillation model for Hall thrusters

Abstract

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.

Authors:
;  [1]
  1. Yanshan University, College of Vehicles and Energy, Qinhuangdao 066004, Hebei (China)
Publication Date:
OSTI Identifier:
22611420
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Advances; Journal Volume: 6; Journal Issue: 8; Other Information: (c) 2016 Author(s); Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; ACCELERATION; CAPTURE; CURRENTS; DISTRIBUTION; ELECTRIC DISCHARGES; ELECTRIC FIELDS; ELECTRON DENSITY; ELECTRONS; EQUATIONS; HALL EFFECT; IONIZATION; IONS; OSCILLATIONS; PHYSICAL PROPERTIES; THRUSTERS

Citation Formats

Wang, Chunsheng, E-mail: wangcs@hit.edu.cn, and Wang, Huashan. Improvement of the low frequency oscillation model for Hall thrusters. United States: N. p., 2016. Web. doi:10.1063/1.4961061.
Wang, Chunsheng, E-mail: wangcs@hit.edu.cn, & Wang, Huashan. Improvement of the low frequency oscillation model for Hall thrusters. United States. doi:10.1063/1.4961061.
Wang, Chunsheng, E-mail: wangcs@hit.edu.cn, and Wang, Huashan. Mon . "Improvement of the low frequency oscillation model for Hall thrusters". United States. doi:10.1063/1.4961061.
@article{osti_22611420,
title = {Improvement of the low frequency oscillation model for Hall thrusters},
author = {Wang, Chunsheng, E-mail: wangcs@hit.edu.cn and Wang, Huashan},
abstractNote = {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.},
doi = {10.1063/1.4961061},
journal = {AIP Advances},
number = 8,
volume = 6,
place = {United States},
year = {Mon Aug 15 00:00:00 EDT 2016},
month = {Mon Aug 15 00:00:00 EDT 2016}
}