2016 Fiscal Year Final Research Report
Dynamic Characteristics of Cavitation in Single Hydrofoils and a Turbopump Inducer
| Project/Area Number |
26420112
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Fluid engineering
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| Research Institution | Osaka University |
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Principal Investigator |
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| Project Period (FY) |
2014-04-01 – 2017-03-31
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| Keywords | インデューサ / キャビテーション / 動特性 / 単独翼 |
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| Outline of Final Research Achievements |
Dynamic characteristics of blade surface cavitation in single hydrofoils was examined mainly in experiment to clarify dynamic characteristics of cavitation in turbopump inducers for rocket engines. In cases of a flat plate, NACA0015, Clark-Y11.8% hydrofoils, the cavity responded to fluctuations of pressure and an angle of attack with almost no phase delay. In the order of a flat plate, NACA0015, Clark-Y11.8% hydrofoils, the size of the cavity was smaller. Therefore, the amount of fluctuation of the cavity volume was smaller in that order of hydrofoils. These outcomes were first findings in the world and have a large impact on the improvement of a reliability of high speed turbopumps such as inducers for rocket engines.
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| Free Research Field |
流体工学
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