| Project/Area Number |
18560178
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Fluid engineering
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| Research Institution | Kogakuin University |
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Principal Investigator |
SATO Kotaro Kogakuin University, グローバルエンジニアリング学部, professor (80252625)
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| Co-Investigator(Kenkyū-buntansha) |
YOKOTA Kazuhiko Nagoya Institute of Technology, 大学院・工学研究科, Associate professor (70260635)
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| Project Period (FY) |
2006 – 2007
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| Project Status |
Completed (Fiscal Year 2007)
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| Budget Amount *help |
¥3,890,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥390,000)
Fiscal Year 2007: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2006: ¥2,200,000 (Direct Cost: ¥2,200,000)
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| Keywords | Micro-pump / Viscosity / Reynolds number / Performance curve / Stokes approximation / Spiral rotor / Flow visualization |
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| Research Abstract |
The development of the micro pump is important because it is related to the fuel supply system of the micro-machine. In micro area, the Reynolds number is extremely low, and the method of using the viscosity is effective for the rotation type pump. In this research, a new viscous micropump using rotor with groove is proposed. Its pressure characteristics are investigated by using a theoretical analysis and a model experiment. In the theoretical analysis, the two-dimensional lubrication theory for a straight duct is adopted. In the model experiment, the low Reynolds number flow in practical micropumps is realized by using glycerin as working fluid, and a centimeter-scale (not micrometer-scale) model pump is examined. With respect to the pressure characteristics, the theoretical results show qualitative agreement with the experimental ones. The pressure at zero flow rate obtained is quite larger than that of an existing viscous micropump.
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