2017 Fiscal Year Final Research Report
Effect of wind directional fluctuation on gas dispersion
| Project/Area Number |
15K06343
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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 |
Architectural environment/Equipment
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| Research Institution | Kindai University |
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Principal Investigator |
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| Project Period (FY) |
2015-04-01 – 2018-03-31
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| Keywords | 都市街区 / ガス拡散 / 風向変動 / 数値シミュレーション |
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| Outline of Final Research Achievements |
In environmental impact assessment in Japan, over 1 hour averaged concentration is generally used. To estimate the concentration in an urban canyon, a numerical simulation considering a wind directional fluctuation may be needed, but the effect of wind directional fluctuation on a gas dispersion within an urban canyon is unknown. In the present study, large-eddy simulations were conducted for a gas dispersion within an idealized urban canopy considering wind directional fluctuation. The results show that the effect of wind directional fluctuation on gas dispersion within the urban canopy is small.
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| Free Research Field |
流体力学
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