2021 Fiscal Year Final Research Report
Investigation of interfrence phenomena and optimization of anode-layer type cluzster system
| Project/Area Number |
19H02343
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Review Section |
Basic Section 24010:Aerospace engineering-related
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| Research Institution | Gifu University |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
朝原 誠 岐阜大学, 工学部, 助教 (40633045)
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| Project Period (FY) |
2019-04-01 – 2022-03-31
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| Keywords | 推進・エンジン / 電気推進 / ロケット / 航空宇宙流体工学 / プラズマ計測 |
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| Outline of Final Research Achievements |
The evaluations of anode layer SBS systems composed of two heads were carried out. By applying an external coil, the effect of improving thruster efficiency was obtained. However, what improved to about 50% when operating as a single unit was only 40% when operating SBS. This is considered to be due to the backflow electron characteristics due to plume interference. In addition, a racetrack-shaped head was introduced for the purpose of obtaining a strong interference field under the same power, and fundamental characteristics such as the influence of the distance between the heads, the discharge voltage, and the flow rate of the propellant were obtained. In addition, we were able to obtain information on the discharge characteristics of individual head differences.
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| Free Research Field |
宇宙工学
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| Academic Significance and Societal Importance of the Research Achievements |
外部磁場により推進性能最適化行うとクラスタ作動時に単体作動時よりも到達推進効率が低くなる可能性を示した。これは磁場設計をクラスタ用に最適化する必要性を示している。また、Racetrack形状ヘッドが円環形状ヘッドよりも同一電力下で強干渉場が得られること、ヘッド個体差について特定のヘッドの放電特性がクラスタ特性として強く表れることを示した。これはクラスタ評価可能範囲を広げ、ヘッド個体差に関する評価知見を与えるものである。
これらクラスタ推進性能上限引上げ指針、クラスタ評価環境に関する改善、評価法に関する知見は、今後のクラスタ開発とそれに伴う大電力化システムの構築に強く貢献するものと言える。
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