Large eddy simulation of shading effects on NO2 and O3 concentrations within an idealised street canyon

2007 ◽  
Vol 41 (34) ◽  
pp. 7304-7314 ◽  
Author(s):  
David Grawe ◽  
Xiao-Ming Cai ◽  
Roy M. Harrison
Keyword(s):  
Large Eddy Simulation ◽  
Street Canyon ◽  
Eddy Simulation ◽  
Large Eddy ◽  
Shading Effects

Large-eddy simulation of reactive pollutant exchange at the top of a street canyon

2018 ◽  
Vol 187 ◽  
pp. 381-389 ◽  
Author(s):  
Beom-Soon Han ◽  
Jong-Jin Baik ◽  
Kyung-Hwan Kwak ◽  
Seung-Bu Park
Keyword(s):  
Large Eddy Simulation ◽  
Street Canyon ◽  
Eddy Simulation ◽  
Large Eddy ◽  
Reactive Pollutant

Model Sensitivity Test of Large Eddy Simulation for Wind Flow and Pollutant Dispersion in a Street Canyon

2014 ◽  
Vol 695 ◽  
pp. 562-566
Author(s):  
Afiq Witri Muhammad Yazid ◽  
Nor Azwadi Che Sidik ◽  
Salim Mohamed Salim ◽  
Shuhaimi Mansor
Keyword(s):  
Steady State ◽  
Large Eddy Simulation ◽  
Street Canyon ◽  
Pollutant Dispersion ◽  
Wind Flow ◽  
Model Sensitivity ◽  
Ansys Fluent ◽  
Urban Street ◽  
Eddy Simulation ◽  
Large Eddy

This paper reports on the model sensitivity analysis of a commercial computational fluid dynamics program, ANSYS FLUENT v14. The purpose of the analysis was to determine the appropriate modeling settings for numerical model of the case study. A full scale of a simplified urban street canyon was modelled and the turbulent flow was calculated using Large Eddy Simulation (LES) techniques. The model sensitivity tests involved are mesh sensitivity, statistically steady state and sampling. Adequate numbers of cells, period time to achieve statistically steady state (SST) and sampling time to simulate wind flow and pollutant dispersion in street canyon were determined through systematic tests.

Large-eddy simulation of turbulent flow and dispersion over a complex urban street canyon

2014 ◽  
Vol 14 (6) ◽  
pp. 1381-1403 ◽  
Author(s):  
Kiyoung Moon ◽  
Jeong-Min Hwang ◽  
Byung-Gu Kim ◽  
Changhoon Lee ◽  
Jung-il Choi
Keyword(s):  
Large Eddy Simulation ◽  
Turbulent Flow ◽  
Street Canyon ◽  
Urban Street Canyon ◽  
Urban Street ◽  
Eddy Simulation ◽  
Large Eddy
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