ジェットフロー形仕切弁まわりのキャビテーション衝撃圧の空間分布

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  • Spatial distribution of cavitation-shock-pressure around a jet-flow gate-valve.
  • ジェット フローガタ シキリベン マワリ ノ キャビテーション ショウゲキアツ

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To make clear the mechanism of cavitation erosion, the spatial distribution of cavitation shock pressures were quantitatively measured by a pressure sensitive sheet in the l/l0 scale model of a jet-flow gate-valve, for various valve-openings and cavitation numbers. The dynamic pressure response of the sheet was corrected by the shock wave generated from detonation explosives. It is made clear that the erosive shock pressures are distributed in a limited part of the whole cavitation region, and the safety region without the fatal cavitation erosion is defined.

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