Study on Visualization of Tornado by Funnel Cloud and Windborne Debris

• Noda Minoru

  The University of Tokushima

• Okamoto Rikiya

  Hirose Corporation

• Yamanaka Daisuke

  Kumagaya Gumi Co. Ltd

• Hosoya Kenji

  Akaishi Construction

• Nagao Fumiaki

  The University of Tokushima

Bibliographic Information

Other Title

• 漏斗雲と飛散物による竜巻の可視化に関する研究

Abstract

It is well known that tornadoes are visualized by funnel clouds and flying debris. If the relationships among the size and strength of tornadoes, the shape and size of funnel clouds and behaviors of flying debris become clear, it may be possible to evaluate the size and strength of a tornado directly from photos and videos. Therefore, funnel clouds and debris clouds formed in tornado-like flow generated by LES were investigated in this study. As the result of this study, the height of funnel clouds is controlled by the strength of the tornado; the width of funnel clouds is controlled by the humidity and the pattern of flying debris were controlled by Tachikawa number and swirl ratio.

Journal

• PROCEEDINGS OF NATIONAL SYMPOSIUM ON WIND ENGINEERING

  PROCEEDINGS OF NATIONAL SYMPOSIUM ON WIND ENGINEERING 23 (0), 385-, 2014

  Japan Association for Wind Engineering

Keywords

• Tornado-like flow
• Funnel cloud
• Motion simulation
• Wind speed estimation

Details

• CRID: 1390001205593279232
• NII Article ID: 130005478169
• DOI: 10.14887/kazekosymp.23.0_385
• Text Lang: ja
• Data Source:
  • JaLC
  • CiNii Articles
  • KAKEN
• Abstract License Flag: Disallowed