Effects of roadside trees on thermal environment and pollutant diffusion in street canyon

Akashi Mochida, Kiyoshi Sasaki, Tatsuaki Iwata, Naoko Hataya, Hiroshi Yoshino

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The effects of roadside trees on outdoor thermal environment and air pollutant diffusion within street canyons in the city centre of Sendai, Japan, are investigated using CFD analyses. The situation with no planted trees was also simulated for comparison. In the results with no planted trees, a large recirculation was found in the street canyon and the air heated by high temperature road surface and contaminated by exhaust gas from automobiles was convected to the area above the sidewalk. Due to the windbreak effects of trees, this large recirculation was not clearly observed in all cases with roadside trees and the regions with high temperature and high concentration were formed only near the surface of the roads.

Original languageEnglish
Title of host publicationEACWE 2005 - 4th European and African Conference on Wind Engineering
Pages232-233
Number of pages2
Publication statusPublished - 2005 Dec 1
Event4th European and African Conference on Wind Engineering, EACWE 2005 - Prague, Czech Republic
Duration: 2005 Jul 112005 Jul 15

Publication series

NameEACWE 2005 - 4th European and African Conference on Wind Engineering

Other

Other4th European and African Conference on Wind Engineering, EACWE 2005
CountryCzech Republic
CityPrague
Period05/7/1105/7/15

ASJC Scopus subject areas

  • Renewable Energy, Sustainability and the Environment

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  • Cite this

    Mochida, A., Sasaki, K., Iwata, T., Hataya, N., & Yoshino, H. (2005). Effects of roadside trees on thermal environment and pollutant diffusion in street canyon. In EACWE 2005 - 4th European and African Conference on Wind Engineering (pp. 232-233). (EACWE 2005 - 4th European and African Conference on Wind Engineering).