Quantitative Evaluation of Ion Kinetic Effect in Magnetic Field Inflation by Injection of Plasma Jet

• KAJIMURA Yoshihiro

  京都大学生存圏研究所 独立行政法人科学技術振興機構，JST/CREST

• FUNAKI Ikkoh

  宇宙航空研究開発機構 独立行政法人科学技術振興機構，JST/CREST

• NISHIDA Hiroyuki

  東京農工大学共生科学技術研究院 独立行政法人科学技術振興機構，JST/CREST

• USUI Hideyuki

  神戸大学工学研究科 独立行政法人科学技術振興機構，JST/CREST

• SHINOHARA Iku

  宇宙航空研究開発機構 独立行政法人科学技術振興機構，JST/CREST

• YAMAKAWA Hiroshi

  京都大学生存圏研究所 独立行政法人科学技術振興機構，JST/CREST

• NAKASHIMA Hideki

  独立行政法人科学技術振興機構，JST/CREST

Bibliographic Information

Other Title

• プラズマ噴射による磁気圏拡大現象におけるイオン粒子効果の定量評価
• プラズマ フンシャ ニ ヨル ジキケン カクダイ ゲンショウ ニ オケル イオン リュウシ コウカ ノ テイリョウ ヒョウカ

Abstract

The steady state of dipolar magnetic field expansion is examined by injecting a plasma jet from the center of the dipolar magnetic field (magnetic inflation). An effective magnetic inflation is essential for the realization of a magneto plasma sail (MPS), which produces a propulsive force by the interaction between the solar wind and an artificial dipolar magnetic field that is inflated by the plasma jet injected from the spacecraft. During the process of magnetic inflation, the finite Larmor radius effect is of practical significance since r_L/L_B is considerably greater than unity in a region far from the center of the dipolar magnetic field. The simulation result obtained using the ideal magnetohydrodynamics (MHD) model is overestimated, namely, it shows that the inflated magnetic field decays according to |B| ∝ r ^-2.0 since the magnetic field is frozen into the plasma jet. In comparison with the MHD result, the results obtained using the hybrid particle-in-cell code are more accurate. These results show that the inflated magnetic field decays according to |B| ∝ r ^-2.3 under the condition β_in = 1 since the finite ion Larmor radius effect decreases the flow of magnetic flux with respect to the flow of plasma jet.

Journal

• JOURNAL OF THE JAPAN SOCIETY FOR AERONAUTICAL AND SPACE SCIENCES

  JOURNAL OF THE JAPAN SOCIETY FOR AERONAUTICAL AND SPACE SCIENCES 57 (666), 287-294, 2009

  THE JAPAN SOCIETY FOR AERONAUTICAL AND SPACE SCIENCES

Keywords

• Magneto Plasma Sail
• Magnetic Inflation
• Hybrid Particle-In-Cell Simulation

Details

• CRID: 1390282679446045184
• NII Article ID: 10026121220
• NII Book ID: AA11307372
• DOI: 10.2322/jjsass.57.287
• ISSN: 24323691
• ISSN: 13446460
• NDL BIB ID: 10381603
• Web Site: http://id.ndl.go.jp/bib/10381603
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I10381603
• Web Site: https://www.jstage.jst.go.jp/article/jjsass/57/666/57_666_287/_pdf
• Text Lang: ja
• Data Source:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
  • KAKEN
• Abstract License Flag: Disallowed