Dynamic Characteristics of Blade Surface Cavitation on Various Types of Hydrofoils

Dynamic Characteristics of Blade Surface Cavitation on Various Types of Hydrofoils
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DOI：
10.1299/jsmefed.2018.os8-6
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发表时间：
2019-07
期刊：
Volume 3B: Fluid Applications and Systems
影响因子：
--
通讯作者：
H. Horiguchi;Masakazu Toyoshima;T. Matsuda;K. Sugiyama
H. Horiguchi;Masakazu Toyoshima;T. Matsuda;K. Sugiyama
中科院分区：
其他
文献类型：
--
作者：
H. Horiguchi;Masakazu Toyoshima;T. Matsuda;K. Sugiyama

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In high speed turbopumps, various types of cavitation such as blade surface cavitation, tip leakage vortex cavitation, and backflow vortex cavitation occurs. When cavitation responses to encourage fluctuation of pressure and flow rate, the oscillation of flow rate called cavitation surge can occur. Therefore, clarification of dynamic characteristics of cavitation is desired to obtain higher reliability of turbopumps. Focusing on blade surface cavitation as one of fundamental cavitation, we investigated dynamic characteristics of blade surface cavitation on Clark-Y 11.7% hydrofoil and NACA0015 hydrofoil in addition to a flat plate hydrofoil in experiments. Several interesting characteristics of blade surface cavitation were clarified.