Abstract
Cavitation is an important factor on influencing the safety and efficiency of hydraulic machinery. So cavitation characteristics and mechanism are the work targets of many scholars. And how to reduce the risk of cavitation is also a hot issue. In this paper, geometry structure of hydrofoil is changing, with different number and angle of hole. Flow fields of hydrofoil are analyzed and compared, and then the effect of drilling angle on flow field of hydrofoil is given. This study introduces geometry optimization ideas for improving cavitation in the area of hydromachinery.
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