2010 Fiscal Year Final Research Report
Effort to reuse of the liquid rocket turbopump -Numerical analysis of cryogenic cavitation-
| Project/Area Number |
21760118
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Single-year Grants |
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| Research Field |
Fluid engineering
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| Research Institution | Tohoku University |
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Principal Investigator |
IGA Yuka 東北大学, 流体科学研究所, 助教 (50375119)
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| Project Period (FY) |
2009 – 2010
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| Keywords | 混相流 / キャビテーション |
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| Research Abstract |
Cavitation occurs inescapably in inlet of turbopump of liquid rocket engine, because the liquid oxygen and hydrogen turbopumps are downsized and made as high-horsepower to the utmost limit. The cavitation sometimes yields cavitation instability, which is undesirable oscillation of the pump induced by mutual interference between the unsteady characteristics of cavitation and the pump system. The cavitation instability induces the declaration of efficiency or damage in the pump. In the present study, in an effort to reuse of the liquid rocket, the numerical method for the cavitation instability and cavitation erosion is attempted to be develop especially in a cryogenic environment such as liquid hydrogen and oxygen.
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