Analysis on Boundary Condition in High Knudsen Number Flow
| Project/Area Number |
20760111
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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 | Nagoya University |
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Principal Investigator |
YAMAGUCHI Hiroki Nagoya University, 大学院・工学研究科, 講師 (50432240)
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| Project Period (FY) |
2008 – 2009
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| Project Status |
Completed (Fiscal Year 2009)
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| Budget Amount *help |
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2009: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2008: ¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000)
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| Keywords | 分子流体工学 / 高クヌッセン数流れ / 境界条件 / 高クヌッセン数 / 数値解析 / 表面相互作用 / 非平衡現象 |
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| Research Abstract |
The gas-surface interaction is important as the boundary condition of the high Knudsen number flows. The accommodation coefficient, which represents the gas-surface interaction as a parameter, was measured and analyzed. Energy accommoda-tion coefficient for platinum was obtained by measuring the heat flux from heated metal wire to gas under the medium vacuum condition using a simple experimental system. The tangential momentum accommodation coefficient for fused silica and platinum was de-duced from the mass flow rate measurement through a microtube. The characteristics of the accommodation coefficient were analyzed by the molecular dynamics method.
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Report
(3 results)
Research Products
(20 results)
