| Vol. - No. | Vol.2 - No.2 |
|---|---|
| Date | Jun., 2013 |
| Title | Air Pollutant Dispersion Phenomena at a Street under a Sky Train Station in Bangkok, Thailand |
| Author | Kyosuke Hiyama1+, Tomomi Hoshiko2, Tassanee Prueksasit3, Shinsuke Kato4, and Makoto Koganei1 |
| Institutions |
1Faculty of Engineering, Yamaguchi University, Yamaguchi, Japan 2Department of Urban Engineering, Faculty of Engineering, The University of Tokyo, Tokyo, Japan 3Department of Environmental Science, Faculty of Science, Chulalongkorn University, Bangkok, Thailand 4Institute of Industrial Science, The University of Tokyo, Tokyo, Japan |
| Abstract | The ventilation performance of a street in Bangkok, Thailand, was investigated by performing measurements and conducting a CFD analysis. We focused on a street that was covered by an elevated train station. It was shown that the ventilation efficiency varied drastically depending on the angle between the street and the wind direction. When the wind direction was parallel to the street, the elevated structure had a negative influence, which created higher pollutant concentrations than in locations without elevated structures. However, when the wind direction was perpendicular to the street, the pollutant concentrations in the two situations were similar. Using a CFD analysis and ventilation performance indexes, it was shown that the elevated structure directed the wind flow and enhanced the ventilation efficiency, which positively affected ventilation performance. These kinds of knowledge can lead us to optimize city planning including high-rise buildings with high ventilation efficiency. |
| Keyword | |
| PP. | PP.115~121 |
| Paper File |
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