2011 Fiscal Year Final Research Report
Development of measuring method of instantaneous concentration distribution in mixing flow and clarification of its unsteady characteristics
| Project/Area Number |
21560211
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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 |
Thermal engineering
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| Research Institution | Mie University |
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Principal Investigator |
HIROTA Masafumi 三重大学, 大学院・工学研究科, 教授 (30208889)
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| Co-Investigator(Kenkyū-buntansha) |
NISHIMURA Akira 三重大学, 大学院・工学研究科, 助教 (60345999)
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| Project Period (FY) |
2009 – 2011
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| Keywords | 乱流混合 / 合流管 / 非定常性 / 可視化 / 濃度場 |
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| Research Abstract |
In this study, we developed a measuring method of instantaneous concentration distributions in turbulent flow based on the results of flow visualization. We applied this method to the turbulent mixing in a cross-flow type T-junction. By analyzing the measured instantaneous concentration distributions with the proper orthogonal decomposition, we extracted large scale periodic fluctuations of the mixing interface between two flows mixed in the T-junction. Then, the turbulent heat/mass transfer process in the T-junction was made clear by combining these data with the measured results of velocity and turbulent heat fluxes.
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