CFD modeling of pollution dispersion in a street canyon: Comparison between LES and RANS. Tominaga, Y. & Stathopoulos, T. Journal of Wind Engineering and Industrial Aerodynamics, 99(4):340 - 348, 2011. Comparison with measurements;Concentration fluctuation;Horizontal diffusions;Pollutant dispersions;Pollution dispersion;RANS;Street canyon;Wind tunnel experiment;Paper abstract bibtex CFD modeling using RANS and LES of pollutant dispersion in a three-dimensional street canyon is investigated by comparison with measurements. The purpose of this study is to confirm the accuracy of LES in modeling plume dispersion in a simple street canyon model and to clarify the mechanism of the discrepancy in relation to RANS computation. Simple LES modeling is shown by comparison with wind tunnel experiments to give better results than conventional RANS computation (RNG) modeling of the distribution of mean concentration. The horizontal diffusion of concentration is well reproduced by LES, mainly due to the reproduction of unsteady concentration fluctuations in the street canyon. © 2010 Elsevier Ltd.
@article{20111713933836 ,
language = {English},
copyright = {Compilation and indexing terms, Copyright 2023 Elsevier Inc.},
copyright = {Compendex},
title = {CFD modeling of pollution dispersion in a street canyon: Comparison between LES and RANS},
journal = {Journal of Wind Engineering and Industrial Aerodynamics},
author = {Tominaga, Yoshihide and Stathopoulos, Ted},
volume = {99},
number = {4},
year = {2011},
pages = {340 - 348},
issn = {01676105},
abstract = {<div data-language="eng" data-ev-field="abstract">CFD modeling using RANS and LES of pollutant dispersion in a three-dimensional street canyon is investigated by comparison with measurements. The purpose of this study is to confirm the accuracy of LES in modeling plume dispersion in a simple street canyon model and to clarify the mechanism of the discrepancy in relation to RANS computation. Simple LES modeling is shown by comparison with wind tunnel experiments to give better results than conventional RANS computation (RNG) modeling of the distribution of mean concentration. The horizontal diffusion of concentration is well reproduced by LES, mainly due to the reproduction of unsteady concentration fluctuations in the street canyon. © 2010 Elsevier Ltd.<br/></div>},
key = {Wind tunnels},
keywords = {Navier Stokes equations;Pollution;},
note = {Comparison with measurements;Concentration fluctuation;Horizontal diffusions;Pollutant dispersions;Pollution dispersion;RANS;Street canyon;Wind tunnel experiment;},
URL = {http://dx.doi.org/10.1016/j.jweia.2010.12.005},
}
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