Large-Eddy Simulation of Airflow and Pollutant Dispersion in a Model Street Canyon Intersection of Dhaka City

• Published in: Atmosphere Vol. 13; no. 7; p. 1028
• Main Authors: Hassan, Sheikh, Akter, Umma Habiba, Nag, Preetom, Molla, Md. Mamun, Khan, Amirul, Hasan, Md Farhad
• Format: Journal Article
• Language: English
• Published: Basel MDPI AG 01.07.2022
• Subjects: Air flow; ANSYS fluent; Atmospheric boundary layer; Boundary layers; CAD; Computer aided design; Computer applications; corner eddy; Dispersion; Eddies; Experiments; Finite volume method; Fluid flow; Height; Large eddy simulation; Large eddy simulations; large-eddy simulation (LES); Mathematical models; Mitigation; Modelling; Oceanic eddies; pollutant dispersion; Pollutants; Pollution dispersion; Qualitative analysis; Simulation; street canyon; Street canyons; street intersection; Streets; Traffic congestion; Traffic intersections; Turbulence; Turbulence models; Turbulence parameters; Urban areas; Urban environments; Ventilation; Viscosity; Vortices; Bangladesh; Dhaka Bangladesh

The atmospheric flow and dispersion of traffic exhaust were numerically studied in this work while considering a model street canyon intersection of a city. The finite volume method (FVM)-based large-eddy simulation (LES) technique in line with ANSYS Fluent have been used for flow and pollutant disp...