TRAJECTORIES OF PLATE-LIKE FLYING DEBRIS IN THE FLOW FIELD OF A TORNADO-LIKE VORTEX

DOI
  • Noda Minoru
    The University of Tokushima
  • Masai Kazuhito
    Graduate School of Advanced Technology and Science and Faculty of Engineering, The University of Tokushima
  • Kashima Takayuki
    Graduate School of Advanced Technology and Science and Faculty of Engineering, The University of Tokushima
  • Nagao Fumiaki
    The University of Tokushima

Bibliographic Information

Other Title
  • 竜巻状流れ場における飛散物の飛行軌道

Description

In order to predict the trajectory of the debris in the flow field of a tornado-like vortex, Motions of three kinds of plate-like debris with difference aspect ratio were simulated numerically by solving 6DOF motion equations taking into account  aerodynamic forces measured experimentally in a wind tunnel test. The effects of Tachikawa number, aspect ratio and wind speed on trajectories of flying debris were investigated. Large Eddy Simulation analysis of wind speed for a tornado wind tunnel was conducted. From the analysis of the dimensional trajectories of flying debris, it is found that the hazardous area against the flying debris formed a circle. Radius of this circle is controlled by the maximum tangential speed of a tornado-like vortex.

Journal

Keywords

Details 詳細情報について

  • CRID
    1390282680570274560
  • NII Article ID
    130004644465
  • DOI
    10.14887/kazekosymp.22.0.121.0
  • Text Lang
    ja
  • Data Source
    • JaLC
    • CiNii Articles
  • Abstract License Flag
    Disallowed

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