Traffic pollutant concentrations at the pedestrian level in a generic urban neighborhood were studied. Scenarios without and with avenue-trees were investigated with Computational Fluid Dynamics (CFD) by employing a Reynolds Stress Model (RSM) to which extra terms are added accounting for the effects of vegetation on the wind. The avenue-trees showed a significant impact on the traffic pollutant dispersion and flow fields in the street canyons and intersections. In the presence of trees, a faster build-up of concentrations was found for the wind-parallel streets. In the wind-perpendicular streets, considerably higher pollutant concentrations at the buildings’ leeward walls were found.
|Title of host publication||Proceedings of the 8th Asia-Pacific Conference on Wind Engineering (APCWE), December 10-14, 2013, Chennai, India|
|Editors||N.R. Iyer, P. Krishna, S.S. Rajan, P. Harikrishna|
|Place of Publication||Chennai, India|
|Publication status||Published - 2013|
Gromke, C. B., & Blocken, B. J. E. (2013). Impact of avenue-trees on traffic pollutant concentrations on the urban neighborhood scale. In N. R. Iyer, P. Krishna, S. S. Rajan, & P. Harikrishna (Eds.), Proceedings of the 8th Asia-Pacific Conference on Wind Engineering (APCWE), December 10-14, 2013, Chennai, India (pp. 499-502). https://doi.org/10.3850/978-981-07-8012-8_209