| Budget Amount *help |
¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000)
Fiscal Year 2016: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2015: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2014: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
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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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