Modelling of Flow Structure and Pollutant Dispersion in Symmetric Street Canyon

C. S.  Nor Azwadi; N. H.  Mohamad Yusoff

Modelling of Flow Structure and Pollutant Dispersion in Symmetric Street Canyon

Authors

C. S. Nor Azwadi Faculty of Mechanical Engineering, Universiti Teknologi Malaysia, 81310 Skudai, Johor, Malaysia
N. H. Mohamad Yusoff Faculty of Mechanical Engineering, Universiti Teknologi Malaysia, 81310 Skudai, Johor, Malaysia

Keywords:

symmetric street canyon, k-Ɛ model, flow structure, pollutant dispersion, FLUENT

Abstract

The quality of air condition is one of the major factors affecting the health of people living
in urban areas. Different geometry of street canyon coupled with different wind direction will result in
various concentration of pollutant accumulated in the canyon. The purpose of this research is to study
the flow structure and also pollutant dispersion in a 3-D symmetric street canyon using computational
fluid dynamics. Different k-? turbulent models were used to simulate the flow structure, and the result
was compared to experimental. The effects of aspect ratio and Reynolds number to the flow structure
and pollutant dispersion in a street canyon were investigated. The studied canyons were avenue, regular
and deep canyon with the aspect ratio of 0.4, 1 and 2 respectively, and Reynolds number of 9000 and
30700.

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Published

2020-10-30

How to Cite

Nor Azwadi, C. S. ., & Mohamad Yusoff, N. H. . (2020). Modelling of Flow Structure and Pollutant Dispersion in Symmetric Street Canyon . Journal of Advanced Research in Applied Mechanics, 2(1), 11–19. Retrieved from https://akademiabaru.com/submit/index.php/aram/article/view/1703