Influences of Magnetic Flux Density on Discharge Characteristics of Low-Power Hall Thruster

The design of the magnetic field is crucial to the performance of the hall thruster. This paper investigates the effects of magnetic field on the discharge characteristics of the low-power hall thruster in the method of combining simulation and experiment. Based on a 40-mm-diameter hall thruster (LH...

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Autores principales:	Weilong Guo, Jun Gao, Zuo Gu, Ning Guo
Formato:	article
Lenguaje:	EN
Publicado:	Departamento de Ciência e Tecnologia Aeroespacial 2021
Materias:	magnetic field discharge characteristics hall thruster Technology T Motor vehicles. Aeronautics. Astronautics TL1-4050
Acceso en línea:	https://doi.org/10.1590/jatm.v13.1240 https://doaj.org/article/f24d340a295c4a49b48e9d06004458b3
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spelling	oai:doaj.org-article:f24d340a295c4a49b48e9d06004458b32021-11-29T12:43:21ZInfluences of Magnetic Flux Density on Discharge Characteristics of Low-Power Hall Thrusterhttps://doi.org/10.1590/jatm.v13.12401984-96482175-9146https://doaj.org/article/f24d340a295c4a49b48e9d06004458b32021-11-01T00:00:00Zhttps://www.scielo.br/j/jatm/a/669vMHFQsBq3xWFfStwrLwh/?format=pdf&lang=enhttps://doaj.org/toc/1984-9648https://doaj.org/toc/2175-9146The design of the magnetic field is crucial to the performance of the hall thruster. This paper investigates the effects of magnetic field on the discharge characteristics of the low-power hall thruster in the method of combining simulation and experiment. Based on a 40-mm-diameter hall thruster (LHT-40) operating with hundreds of Watts, a two-dimensional axisymmetric model is established in fluid method to investigate the mechanism, how the magnetic field influences the performance of the thruster, and the experiments are also carried out to investigate the performance effected by magnetic field. Both the numerical and the experimental results indicate that there is an optimal magnetic flux density in which the thruster could achieve a higher efficiency compared with other conditions. And in order to maintain its high efficiency, the line of magnetic-curve inflexion inside the discharge channel should coincide with the center line of the channel to decrease the interaction between the plasma and the wall. The LHT-40 could generate about 12.2 mN of thrust at an optimal efficiency of 27% when the maximum magnetic flux density along the center line of the channel is about 200 Gs. Weilong GuoJun GaoZuo GuNing GuoDepartamento de Ciência e Tecnologia Aeroespacialarticlemagnetic fielddischarge characteristicshall thrusterTechnologyTMotor vehicles. Aeronautics. AstronauticsTL1-4050ENJournal of Aerospace Technology and Management, Vol 13, Iss 1, Pp e4521-e4521 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	magnetic field discharge characteristics hall thruster Technology T Motor vehicles. Aeronautics. Astronautics TL1-4050
spellingShingle	magnetic field discharge characteristics hall thruster Technology T Motor vehicles. Aeronautics. Astronautics TL1-4050 Weilong Guo Jun Gao Zuo Gu Ning Guo Influences of Magnetic Flux Density on Discharge Characteristics of Low-Power Hall Thruster
description	The design of the magnetic field is crucial to the performance of the hall thruster. This paper investigates the effects of magnetic field on the discharge characteristics of the low-power hall thruster in the method of combining simulation and experiment. Based on a 40-mm-diameter hall thruster (LHT-40) operating with hundreds of Watts, a two-dimensional axisymmetric model is established in fluid method to investigate the mechanism, how the magnetic field influences the performance of the thruster, and the experiments are also carried out to investigate the performance effected by magnetic field. Both the numerical and the experimental results indicate that there is an optimal magnetic flux density in which the thruster could achieve a higher efficiency compared with other conditions. And in order to maintain its high efficiency, the line of magnetic-curve inflexion inside the discharge channel should coincide with the center line of the channel to decrease the interaction between the plasma and the wall. The LHT-40 could generate about 12.2 mN of thrust at an optimal efficiency of 27% when the maximum magnetic flux density along the center line of the channel is about 200 Gs.
format	article
author	Weilong Guo Jun Gao Zuo Gu Ning Guo
author_facet	Weilong Guo Jun Gao Zuo Gu Ning Guo
author_sort	Weilong Guo
title	Influences of Magnetic Flux Density on Discharge Characteristics of Low-Power Hall Thruster
title_short	Influences of Magnetic Flux Density on Discharge Characteristics of Low-Power Hall Thruster
title_full	Influences of Magnetic Flux Density on Discharge Characteristics of Low-Power Hall Thruster
title_fullStr	Influences of Magnetic Flux Density on Discharge Characteristics of Low-Power Hall Thruster
title_full_unstemmed	Influences of Magnetic Flux Density on Discharge Characteristics of Low-Power Hall Thruster
title_sort	influences of magnetic flux density on discharge characteristics of low-power hall thruster
publisher	Departamento de Ciência e Tecnologia Aeroespacial
publishDate	2021
url	https://doi.org/10.1590/jatm.v13.1240 https://doaj.org/article/f24d340a295c4a49b48e9d06004458b3
work_keys_str_mv	AT weilongguo influencesofmagneticfluxdensityondischargecharacteristicsoflowpowerhallthruster AT jungao influencesofmagneticfluxdensityondischargecharacteristicsoflowpowerhallthruster AT zuogu influencesofmagneticfluxdensityondischargecharacteristicsoflowpowerhallthruster AT ningguo influencesofmagneticfluxdensityondischargecharacteristicsoflowpowerhallthruster
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Influences of Magnetic Flux Density on Discharge Characteristics of Low-Power Hall Thruster

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