Air pollution dispersion modelling in urban environment using CFD: a systematic review

M Pantusheva, R Mitkov, PO Hristov… - Atmosphere, 2022 - mdpi.com
Air pollution is a global problem, which needs to be understood and controlled to ensure a
healthy environment and inform sustainable development. Urban areas have been …

CFD simulations of wind flow and pollutant dispersion in a street canyon with traffic flow: Comparison between RANS and LES

X Zheng, J Yang - Sustainable Cities and Society, 2021 - Elsevier
The dispersion of traffic pollutants in street canyons takes place under the joint influence of
the urban morphology and traffic-induced air motions. Computational fluid dynamics (CFD) …

[HTML][HTML] On the accuracy of idealized sources in CFD simulations of pollutant dispersion in an urban street canyon

P Qin, A Ricci, B Blocken - Building and Environment, 2024 - Elsevier
Idealized pollutant sources are widely used by the scientific community to replicate traffic
emissions in wind tunnel tests and CFD simulations. However, it is unclear to what extent …

Numerical investigation of the effects of environmental conditions, droplet size, and social distancing on droplet transmission in a street canyon

X Fan, X Zhang, AU Weerasuriya, J Hang, L Zeng… - Building and …, 2022 - Elsevier
This study investigated interpersonal droplet transmission between a healthy and an
infected person in a two-dimensional (2D) street canyon using Computational Fluid …

A POD-DMD augmented procedure to isolating dominant flow field features in a street canyon

Y Fu, X Lin, L Li, Q Chu, H Liu, X Zheng, CH Liu… - Physics of …, 2023 - pubs.aip.org
This work develops a data analysis procedure, namely, proper orthogonal decomposition
(POD)-dynamic mode decomposition (DMD) augmented analysis, to isolate the energy-and …

[HTML][HTML] Large-eddy simulation of pollutant dispersion in generic urban street canyons: Guidelines for domain size

X Zheng, H Montazeri, B Blocken - Journal of Wind Engineering and …, 2021 - Elsevier
Pollutant dispersion in urban street canyons has been widely investigated by large-eddy
simulation (LES). Many LES studies focused on generic street canyons under a wind …

Large eddy simulation of flow field and pollutant diffusion around buildings with different thermal stratifications

D Guo, J Zhao, Z Zhang, G Yang, Y Li, J Zhang… - Process Safety and …, 2024 - Elsevier
The main aim of the current article is to explore the influence of buildings on flow field
structure in the surrounding area and analyze the dispersion of pollutants using the large …

Effects of ground heating on ventilation and pollutant transport in three-dimensional urban street canyons with unit aspect ratio

G Jiang, T Hu, H Yang - Atmosphere, 2019 - mdpi.com
A validated standard k-ε model was used to investigate the effects of ground heating on
ventilation and pollutant transport in a three-dimensional (3D) street canyon. Air entered the …

Measurements and modelling of particulate matter building ingress during a severe dust storm event

CD Argyropoulos, H Hassan, P Kumar… - Building and …, 2020 - Elsevier
Dust storms are a common phenomenon that occurs in many dry and arid areas,
demonstrates very high levels of particulate matter (PM), can spread significantly further than …

FVM-RANS modeling of air pollutants dispersion and traffic emission in Dhaka City on a suburb scale

ME Ali, MF Hasan, S Siddiqa, MM Molla… - Sustainability, 2022 - mdpi.com
The present study aims to investigate the impact of air pollutants dispersion from traffic
emission under the influence of wind velocity and direction considering the seasonal cycle …