論文

2014年

Numerical Study on Fundamental Characteristics of Electro-Hydrodynamic Thruster for Mobility in Planetary Atmosphere

TRANSACTIONS OF THE JAPAN SOCIETY FOR AERONAUTICAL AND SPACE SCIENCES, AEROSPACE TECHNOLOGY JAPAN
  • SHIBATA Hisaichi
  • ,
  • WATANABE Yasumasa
  • ,
  • YANO Ryosuke
  • ,
  • SUZUKI Kojiro

12
29
開始ページ
Pe_5
終了ページ
Pe_9
記述言語
英語
掲載種別
DOI
10.2322/tastj.12.Pe_5
出版者・発行元
THE JAPAN SOCIETY FOR AERONAUTICAL AND SPACE SCIENCES

The EHD (electro-hydrodynamic) thruster seems suitable for a device of mobility at planetary exploration because of its propellant-less nature. In this paper, the fundamental characteristics of the EHD thruster are investigated from a viewpoint of the applicability to the planetary exploration. The numerical analysis of the drift-diffusion equations shows that it works irrespective to the polarity of the electrodes because the polarity of the produced ions is also changed. This fact implies that it will work in different atmospheric composition with different polarity of the produced ions. It is also numerically found that the thrust tends to increase with the decrease in the ambient pressure. For simplicity of discussion, a simple analytical model to describe the energy conversion efficiency is derived, and it indicates that higher efficiency is expected in higher Knudsen number regime. Both the above results suggest that the EHD thruster is promising especially in planetary atmosphere with low density.

リンク情報
DOI
https://doi.org/10.2322/tastj.12.Pe_5
CiNii Articles
http://ci.nii.ac.jp/naid/130003395435
URL
https://jlc.jst.go.jp/DN/JALC/10033734735?from=CiNii
ID情報
  • DOI : 10.2322/tastj.12.Pe_5
  • ISSN : 1884-0485
  • CiNii Articles ID : 130003395435

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