Studies on the Air Current through Pipes : In the Case where a Column Is Inserted in the Pipe

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  • 円管内の気流に関する研究 : 管内に円棒を押込んだ場合
  • エン カンナイ ノ キリュウ ニ カンスル ケンキュウ

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Abstract

The authors performed a series of experiments for the purpose of investigating the state of the air current at the mouth of the tunnel when the train ran into the tunnel. Next inserting a column instead of the train at the constant velocity into the pipe instead of the tunnel placed horizontally, the velocity of the air current inside the pipe was measured with the hot wire anemometer. And when the experimental result obtained from the experiment above was compared with the theoretical values, the former was found to have been nearly agreeing with the latter.

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