This work proposes a CFD model for predicting vehicle combustion exhaust propagation in the micro-scale approach, in which the buildings and street canyons in urban areas are accurately represented in computational domain. The pollution dispersion is calculated with the advection-diffusion-reaction equation. The Reynolds averaged Navier-Stokes equations are numerically solved for wind flows. The movement and the heat release rate of the vehicles on the roads are considered as sources for environmental turbulent energy. Two formulations are proposed to represent the light and heavy traffic, respectively. The pollution sources coming from vehicle emissions on the streets may be varied unsteadily, which reflects the movement of vehicles.
Conference or Workshop Item (Paper)
Proceedings of the 6th WSEAS International Conference on FLUID MECHANICS (FLUIDS'09), ISSN: 1790-5095, ISBN: 978-960-474-40-6
Also see https://clok.uclan.ac.uk/2041
Uncontrolled Keywords (separate with ;):
Vehicle combustion exhaust; Pollution in urban area; Turbulence generated by moving vehicle;
Field model; Finite element method;