Laminar drag reduction by optimization of hydrophobic microstructure
| Project/Area Number |
22760134
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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 | Tokyo Metropolitan University |
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Principal Investigator |
OGATA Satoshi 首都大学東京, 理工学研究科, 准教授 (50315751)
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| Project Period (FY) |
2010 – 2011
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| Project Status |
Completed (Fiscal Year 2011)
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| Budget Amount *help |
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2011: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2010: ¥3,380,000 (Direct Cost: ¥2,600,000、Indirect Cost: ¥780,000)
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| Keywords | 抵抗減少 / 層流 / 疎水性 / マイクロバブル / マイクロチャンネル / 流体工学 / マイクロ・ナノデバイス / 固気液界面 / 疎水 / すべり境界条件 |
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| Research Abstract |
We investigated the effect of the wall surface properties(hydrophilicity or hydrophilicity, surface microstructure) on the behavior of gas-liquid interface and the effect of the gas-liquid interface on the drag reduction in a micro channel by numerical simulation. Only if the microstructure with a hydrophobic surface, the gas-liquid interface is formed in the fine structure. The Gas-liquid interface is the factors that give rise to drag reduction effect up to 33%. The drag reduction effect is affected by the location and the elevation of the gas-liquid interface, the channel height, and the Re number.
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Report
(3 results)
Research Products
(8 results)
