インデューサの入口ケーシング形状が非定常キャビテーションの発生に与える影響(流体工学,流体機械)

概要

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The effects of inlet casing geometries on unsteady cavitation were investigated with a 3-bladed inducer. Through the experiments with various types of casings, the unsteady cavitation occurrence range in cavitation number was examined for various flow rates. It was found that the onset point of rotating cavitation moves to lower cavitation number when the tip clearance was increased. The size and location of casing enlargement affected the occurrence of cavitation instabilities significantly. Back flow at inducer inlet and tip cavity were also investigated to obtain the information to understand the mechanism of suppression of unsteady cavitation by changing the geometry of the casing.
社団法人日本機械学会の論文
2004-06-25