JAXA Repository / AIREX 未来へ続く、宙(そら)への英知

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titleサブスケール磁気セイルと太陽風相互作用スケールについて
Other TitleOn scales of interaction between moderately-sized magnetic sails and solar wind
Author(jpn)藤田 和央; 船木 一幸; 小川 博之; 山川 宏
Author(eng)Fujita, Kazuhisa; Funaki, Ikko; Ogawa, Hiroyuki; Yamakawa, Hiroshi
Author Affiliation(jpn)宇宙航空研究開発機構; 宇宙航空研究開発機構; 宇宙航空研究開発機構; 宇宙航空研究開発機構
Author Affiliation(eng)Japan Aerospace Exploration Agency; Japan Aerospace Exploration Agency; Japan Aerospace Exploration Agency; Japan Aerospace Exploration Agency
Issue Date2005-03
PublisherInstitute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA/ISAS)
宇宙航空研究開発機構宇宙科学研究本部
Publication title宇宙航行の力学シンポジウム 平成16年度
Symposium on Flight Mechanics and Astrodynamics 2004
Start page13
End page16
Publication date2005-03
Languagejpn
AbstractA series of numerical simulations of electromagnetic interaction between the solar wind and the moderately-sized magnetic sails is conducted to clarify the characteristics of reaction forces on the magnetic sail when its characteristic scale is reduced below the continuum limit at which the MHD approximations of the plasma flow fail. The hybrid particle-in-cell (PIC) method is used to take into account the non-continuum effects of the electromagnetic interactions between the flow and the magnetic field. The magnetic dipole intensity was changed so that the characteristic size of the magnetic sail changes from several hundred meters to few thousand kilometers. The results show that the drag coefficient of the magnetic sail even increases as the ratio of the ion Larmor radius to the characteristic scale of the magnetic field becomes greater than unity. This suggests that the moderately-sized magnetic sails, which are more realistic than conventional gigantic magnetic sails of several thousand kilometers from an engineering standpoint, can be one of the candidates of propulsion system for deep space missions.
Keywordselectromagnetic interaction; magnetic sail; solar wind; numerical analysis; numerical simulation; magneto-plasma sail; space exploration; magnetohydrodynamics; spacecraft propulsion; 電磁相互作用; 磁気セイル; 太陽風; 数値解析; 数値シミュレーション; 磁気プラズマセイル; 宇宙探査; 電磁流体力学; 宇宙機推進
Document TypeConference Paper
JAXA Categoryシンポジウム・研究会
SHI-NOAA0048089004
URIhttps://repository.exst.jaxa.jp/dspace/handle/a-is/38850


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