Eventos Anais de eventos
COBEM 2023
27th International Congress of Mechanical Engineering
Effect Of Moving Vehicles On The Flow And Dispersion Of Carbon Monoxide In An Urban Canyon
Submission Author:
Gabriel Gusmão Almeida , ES
Co-Authors:
Gabriel Gusmão Almeida, Fernanda Capucho Cezana
Presenter: Gabriel Gusmão Almeida
doi://10.26678/ABCM.COBEM2023.COB2023-0122
Abstract
The urbanization has never been so present in cities and together with it comes an increase in vehicle fleet and building density present in urban zones, becoming necessary studies about the impacts that these advancements have been causing on the air quality that we breathe. This work aims to study the behavior of carbon monoxide dispersion and flow, coming from automobile emissions, inside an idealized urban canyon. The vehicle induced turbulence influence over the carbon monoxide flow and dispersion were evaluated, considering two different moving vehicle velocities. For that, the finite volume method together with a non-structured polyhedral mesh present in the numerical simulation software Ansys Fluent© 22.0 was used, in which it solved the mass, momentum and chemical species conservation equations. Beyond that, turbulence modelling was performed using the Reynolds Averaged Navier-Stokes (RANS) approach. The numerical results were compared with data obtained from wind tunnel experiments and similar numerical simulation results present in the literature. It can be verified that the variables of interest such as velocity, turbulent kinetic energy and carbon monoxide concentrations were strongly influenced by the vehicle velocity change, mainly when compared with the standing vehicle case.
Keywords
Computational Fluid Dynamics, Urban canyon, Vehicle induced turbulence, carbon monoxide
