高レイノルズ数領域における直列2円柱まわりの流れ

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書誌事項

タイトル別名
  • On the Flow around Two Circular Cylinders in a Tandem Arrangement at High Reynolds Numbers
  • コウレイノルズスウ リョウイキ ニ オケル チョクレツ 2 エンチュウマワリ ノ ナガレ

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抄録

The aerodynamic interference between two circular cylinders in a tandem arrangement has been examined over the Reynolds number range 105 to 5 x 105 . The static pressure distributions around the circumference of each cylinder were measured and the drag and lift forces were obtained for each cylinder. Over a small range of Reynolds number at the critical regime, a laminar separation bubble is formed on one side only of the upstream cylinder and both cylinders experience the lift forces. The Reynolds number range where a bubble is formed on one side only of the upstream cylinder becomes large with decrease of the spacing between two cylinders. The flow patterns in the gap between two cylinders were visualized by means of smoke injection method.

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