Performance Simulation of a 5 kW hall Thruster
Hall thruster is a kind of plasma optics device, which is used mainly in space propulsion. To simulate the discharge process of plasma and the performance of a 5 kW hall thruster, a two-dimensional PIC-MCC model in the R-Z plane is built. In the model, the anomalous diffusion of the electrons includ...
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| Format: | Article |
| Language: | English |
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Frontiers Media S.A.
2021-11-01
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| Series: | Frontiers in Materials |
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| Online Access: | https://www.frontiersin.org/articles/10.3389/fmats.2021.754479/full |
| _version_ | 1797961400939708416 |
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| author | L. Yang P. Y. Wang T. Wang |
| author_facet | L. Yang P. Y. Wang T. Wang |
| author_sort | L. Yang |
| collection | DOAJ |
| description | Hall thruster is a kind of plasma optics device, which is used mainly in space propulsion. To simulate the discharge process of plasma and the performance of a 5 kW hall thruster, a two-dimensional PIC-MCC model in the R-Z plane is built. In the model, the anomalous diffusion of the electrons including Bohm diffusion and near-wall conduction is modeled. The Bohm diffusion is modeled by using a Brownian motion instead of the Bohm collision method and the near-wall conduction is modeled by a secondary electron emission model. In addition to the elastic, excitation, and ionization collisions between electrons and neutral atoms, the Coulomb collisions are included. The plasma discharge process including the transient oscillation and steady state oscillation is well reproduced. First, the influence of the discharge voltage and magnetic field on the steady state oscillation is simulated. The oscillation amplitude increases as the discharge voltage gets larger at first, and then decreases. While the oscillation amplitude decreases as the magnetic field gets stronger at first, and then increases. Later, the influence of the discharge voltage and mass flow rate on the performance of the thruster is simulated. When the mass flow rate is constant, the total efficiency initially increases with the discharge voltage, reaches the maximum at 600 V, and then declined. When the discharge voltage is constant, the total efficiency increases as the mass flow rate rises from 10 to 15 mg/s. Finally, a comparison between simulated and experimental performance reveals that the largest deviation is within 15%, thereby indirectly validating the accuracy of the model. |
| first_indexed | 2024-04-11T00:57:50Z |
| format | Article |
| id | doaj.art-9c421436db824d9499fa400057068140 |
| institution | Directory Open Access Journal |
| issn | 2296-8016 |
| language | English |
| last_indexed | 2024-04-11T00:57:50Z |
| publishDate | 2021-11-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Materials |
| spelling | doaj.art-9c421436db824d9499fa4000570681402023-01-04T23:10:51ZengFrontiers Media S.A.Frontiers in Materials2296-80162021-11-01810.3389/fmats.2021.754479754479Performance Simulation of a 5 kW hall ThrusterL. YangP. Y. WangT. WangHall thruster is a kind of plasma optics device, which is used mainly in space propulsion. To simulate the discharge process of plasma and the performance of a 5 kW hall thruster, a two-dimensional PIC-MCC model in the R-Z plane is built. In the model, the anomalous diffusion of the electrons including Bohm diffusion and near-wall conduction is modeled. The Bohm diffusion is modeled by using a Brownian motion instead of the Bohm collision method and the near-wall conduction is modeled by a secondary electron emission model. In addition to the elastic, excitation, and ionization collisions between electrons and neutral atoms, the Coulomb collisions are included. The plasma discharge process including the transient oscillation and steady state oscillation is well reproduced. First, the influence of the discharge voltage and magnetic field on the steady state oscillation is simulated. The oscillation amplitude increases as the discharge voltage gets larger at first, and then decreases. While the oscillation amplitude decreases as the magnetic field gets stronger at first, and then increases. Later, the influence of the discharge voltage and mass flow rate on the performance of the thruster is simulated. When the mass flow rate is constant, the total efficiency initially increases with the discharge voltage, reaches the maximum at 600 V, and then declined. When the discharge voltage is constant, the total efficiency increases as the mass flow rate rises from 10 to 15 mg/s. Finally, a comparison between simulated and experimental performance reveals that the largest deviation is within 15%, thereby indirectly validating the accuracy of the model.https://www.frontiersin.org/articles/10.3389/fmats.2021.754479/fullhall thrusterplasma optics deviceparticle-in-cellperformance simulationplasma oscillation |
| spellingShingle | L. Yang P. Y. Wang T. Wang Performance Simulation of a 5 kW hall Thruster Frontiers in Materials hall thruster plasma optics device particle-in-cell performance simulation plasma oscillation |
| title | Performance Simulation of a 5 kW hall Thruster |
| title_full | Performance Simulation of a 5 kW hall Thruster |
| title_fullStr | Performance Simulation of a 5 kW hall Thruster |
| title_full_unstemmed | Performance Simulation of a 5 kW hall Thruster |
| title_short | Performance Simulation of a 5 kW hall Thruster |
| title_sort | performance simulation of a 5 kw hall thruster |
| topic | hall thruster plasma optics device particle-in-cell performance simulation plasma oscillation |
| url | https://www.frontiersin.org/articles/10.3389/fmats.2021.754479/full |
| work_keys_str_mv | AT lyang performancesimulationofa5kwhallthruster AT pywang performancesimulationofa5kwhallthruster AT twang performancesimulationofa5kwhallthruster |