インデューサの翼端形状が非定常キャビテーションおよび逆流に与える影響(流体工学,流体機械)

概要

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The effect of blade tip geometry on unsteady cavitation was investigated in a 3-bladed inducer. Experiments in inducers with and without the blade tip rounding on the pressure side were carried out and the results were compared. Through the measurement of inlet pressure fluctuation, it is found that unsteady cavitation is suppressed in the inducer with rounded tip compared with that with flat tip at relatively high flow rates. Backflow in each inducer was also investigated for various cavitation numbers because backflow may be also affected by tip geometry. It is clarified that backflow in the inducer with rounded tip is a little greater than that with flat tip and the back flow becomes weaker with the decrease of cavitation number.
社団法人日本機械学会の論文
2004-02-25