2012 Fiscal Year Final Research Report
Flow visualization and image velocimetry of dynamics of turbulencestructure nearby porous bed
| Project/Area Number |
23760460
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Multi-year Fund |
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| Research Field |
Hydraulic engineering
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| Research Institution | Kumamoto University (2012)
Kyoto University (2011) |
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Principal Investigator |
NAKAJO Sota 熊本大学, 大学院・自然科学研究科, 助教 (20590871)
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| Co-Investigator(Renkei-kenkyūsha) |
SHIGEMATSU Takaaki 大阪市立大学, 工学部, 教授 (80206086)
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| Research Collaborator |
TAKEOKA Yusuke 株式会社酉島製作所
OKADA Yuuya 株式会社日水コン
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| Project Period (FY) |
2011 – 2012
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| Keywords | 海岸工学 / 多孔質体 / 乱流 |
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| Research Abstract |
In this study , the interaction of upper clear flow and porous mediaflow , the variation of strong shear flow near porous bed and temporal/spatial distributionpattern of turbulent properties were shown by using image velocimetry . The interactionregion of strong shear flow was changed in response to the acceleration of upper clear flow .And the reverse flow was generated inside porous media in response to its change. Finally ,it was clear that the nonlinear turbulence model have high performance to reproduce timevariation of turbulent properties nearby porous bed.
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