プロペラのTip Vortex Cavitation Bursting現象の発生機構

DOI Web Site 被引用文献5件 参考文献11件

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タイトル別名
  • Generation Mechanism of Bursting Phenomena of Propeller Tip Vortex Cavitation
  • プロペラ ノ Tip Vortex Cavitation Bursting ゲンショウ ノ ハッセイ キコウ ガン トウロン

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抄録

Bursting phenomenon of tip vortex cavitation of a propeller causes high frequency vibration, but its mechanism is not elucidated yet. In this study the authors made the experiment that used two kinds of propellers and changed some experimental conditions such as wake distributions, and examined the burst phenomenon with high speed video camera. We also measured flow distribution around the tip vortex. As a result we found that in the burst phenomenon big pressure fluctuations were measured twice, and it depended strongly on the flow distribution of the wake. With the bursting wake tip vortex moved below downstream and was bigger and slower than that of non-bursting wake so that it interfered in the cavitation of the next blade.

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