SEISAN KENKYU
Online ISSN : 1881-2058
Print ISSN : 0037-105X
ISSN-L : 0037-105X
Research Review
Development of prediction system for micro-scale atmospheric pollution by means of Large-Eddy Simulation Part 2
Study on the effect of bi-molecular reactions on the air pollutants dispersion in two-dimensional urban street canyons
Hideki KIKUMOTORyozo OOKA
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2011 Volume 63 Issue 1 Pages 43-49

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Abstract

LES coupled with a bi-molecular reaction model are conducted on the reactive air pollutants dispersion in urban street canyons which have two different roof-height variations. Nitrogen monoxides (NO) emitted from a line-source set on the bottom of the street canyon disperse and react with Ozone (O3) included in free streams. The reactivity of air pollutants has a considerable influence on their concentrations of a city block scale. In addition, the roof-height change also has a significance impact on the urban ventilation, making concentrations in the canyon space of product the highest in the even roof height case, meanwhile O3 in the non-uniform height case.

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© 2011 Institute of Industrial Science The University of Tokyo
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