Study on the generalization of the fluid mixing theory, including an asymmetric mixing
| Project/Area Number |
24560920
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Properties in chemical engineering process/Transfer operation/Unit operation
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| Research Institution | Yokohama National University |
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Principal Investigator |
Nishi Kazuhiko 横浜国立大学, 工学(系)研究科(研究院), 准教授 (20262412)
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| Project Period (FY) |
2012-04-01 – 2016-03-31
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| Project Status |
Completed (Fiscal Year 2015)
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| Budget Amount *help |
¥5,200,000 (Direct Cost: ¥4,000,000、Indirect Cost: ¥1,200,000)
Fiscal Year 2015: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2014: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2013: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2012: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
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| Keywords | ミキシング / 流脈面 / 偏心撹拌 / 数値混合実験 / 完全邪魔板条件 / 撹拌所要動力 / 水平荷重 / 混合 / 非対称撹拌 / 混合指標 / 撹拌 / 流脈 |
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| Outline of Final Research Achievements |
In this study, we aim to build a general theory to explain the mixing ranging from the laminar state to the turbulent state.
For the laminar mixing, the streak lobe in the stirred vessel was investigated in experiments and numerical simulation. Index for quantifying the structure of the streak lobe was proposed and it was correlated with mixing process and mixing rate.
In the transition and turbulent mixing, the dynamic change of power consumption and horizontal load for the vertical paddle impeller and large type impeller were investigated. They were measured in the concentric and eccentric conditions. Based on the frequency analysis of these data, the mixing effect was separated into convection mixing associated with streak lobe and turbulent diffusion mixing effect based on the turbulent eddy. Quantitative discussion of each of the mixing effect was advanced to general of the mixing theory.
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Report
(5 results)
Research Products
(32 results)
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[Presentation] 大型翼を用いた偏心撹拌2015
Author(s)
仁志和彦，三角 隆太，上ノ山 周
Organizer
化学工学会第80年会
Place of Presentation
東京 芝浦工大
Year and Date
2015-03-19 – 2015-03-21
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