論文

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2017年10月16日

Visualization of Projectile Flying at High Speed in Dusty Atmosphere

IOP Conference Series: Materials Science and Engineering
  • Chihiro Masaki
  • ,
  • Yasumasa Watanabe
  • ,
  • Kojiro Suzuki

249
1
記述言語
英語
掲載種別
研究論文(国際会議プロシーディングス)
DOI
10.1088/1757-899X/249/1/012015
出版者・発行元
IOP PUBLISHING LTD

© 2017 Published under licence by IOP Publishing Ltd. Considering a spacecraft that encounters particle-laden environment, such as dust particles flying up over the regolith by the jet of the landing thruster, high-speed flight of a projectile in such environment was experimentally simulated by using the ballistic range. At high-speed collision of particles on the projectile surface, they may be reflected with cracking into smaller pieces. On the other hand, the projectile surface will be damaged by the collision. To obtain the fundamental characteristics of such complicated phenomena, a projectile was launched at the velocity up to 400 m/s and the collective behaviour of particles around projectile was observed by the high-speed camera. To eliminate the effect of the gas-particle interaction and to focus on only the effect of the interaction between the particles and the projectile's surface, the test chamber pressure was evacuated down to 30 Pa. The particles about 400μm diameter were scattered and formed a sheet of particles in the test chamber by using two-dimensional funnel with a narrow slit. The projectile was launched into the particle sheet in the tangential direction, and the high-speed camera captured both projectile and particle motions. From the movie, the interaction between the projectile and particle sheet was clarified.

Web of Science ® 被引用回数 : 1

リンク情報
DOI
https://doi.org/10.1088/1757-899X/249/1/012015
Web of Science
https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=JSTA_CEL&SrcApp=J_Gate_JST&DestLinkType=FullRecord&KeyUT=WOS:000419294700015&DestApp=WOS_CPL
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