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タイトル: | Thrust Evaluation of Small-Scale Magnetic Sail Spacecraft by Three-Dimensional Particle-in-Cell Simulation |
著者: | Ashida, Yasumasa Yamakawa, Hiroshi Funaki, Ikkoh Usui, Hideyuki Kajimura, Yoshihiro Kojima, Hirotsugu https://orcid.org/0000-0002-4609-3500 (unconfirmed) |
著者名の別形: | 芦田, 康将 |
発行日: | Jan-2014 |
出版者: | American Institute of Aeronautics and Astronautics |
誌名: | Journal of Propulsion and Power |
巻: | 30 |
号: | 1 |
開始ページ: | 186 |
終了ページ: | 196 |
抄録: | A magnetic sail is a spacecraft propulsion system that generates an artificial magnetosphere to block solar wind particles and uses the imparted momentum to accelerate a spacecraft. In the present study, three-dimensional particle-in-cell simulations were conducted on small-scale magnetospheres to investigate the thrust characteristics of small-scale magnetic sails. The results show that electron Larmor motion and charge separation become significant in small-scale magnetospheres, and that the thrust of the magnetic sail is affected by the cross-sectional area of the charge-separated plasma cavity. Empirical formulas for the thrust are obtained by changing spacecraft design and solar wind parameters. These equations show that the thrust of a small-scale magnetic sail is approximately proportional to magnetic moment, solar wind density, and solar wind velocity. The empirical formulas enable determination of the trajectory of the spacecraft and performance of a mission analysis. |
著作権等: | © AIAA この論文は出版社版でありません。引用の際には出版社版をご確認ご利用ください。 This is not the published version. Please cite only the published version. |
URI: | http://hdl.handle.net/2433/182204 |
DOI(出版社版): | 10.2514/1.B35026 |
出現コレクション: | 学術雑誌掲載論文等 |
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