0.24米風洞について(日本航海学会第27回講演会)

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書誌事項

タイトル別名
  • On the 0.24m Wind Tunnel
  • 0.24米風洞について
  • 0.24メートル フウドウ ニ ツイテ

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抄録

In order to make it possible to conduct model experiments in the course of aerodynamic studies of ship and their equipment, the writer arranged a small wind tunnel. It is a Gottingen type having rectangular section as shown in Fig.1. A wooden propeller driven by 2H.P. electric motor is employed to circulate the air current in the tunnel. Speed of the wind is altered by three kinds of pulleys and measured by an inclined-tube-manometer combined with a pitot tube. Maximum speed of the wind is 22m/sec and power coefficient is 4.085. Figs.3-5 indicate the distribution chart of speed at the central section of the measurement part. Then, the drags of spheres supported as shown in Fig.6 were measured to ascertain the turbulence in the air current.

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