Pg. Mestayer et Jf. Sini, A comprehensive numerical simulation of traffic pollution in a street during one diurnal cycle, INT J ENV P, 14(1-6), 2000, pp. 508-516
Citations number
6
Categorie Soggetti
Environment/Ecology
Journal title
INTERNATIONAL JOURNAL OF ENVIRONMENT AND POLLUTION
A numerical simulation of the traffic pollutant transport diffusion within
one busy street of Nantes city centre has been realized for a real-time dur
ation of 24 hours, with a time step of 20 ms, in low wind, sunny conditions
. It has been generated with the urban canopy model CHENSI, which includes
sub-models of thermal buoyancy, traffic emission rates, car induced turbule
nce. A number of frames of the simulation film are selected to illustrate t
he mechanism and the influence of the coupling between dynamic and thermal
convections upon the flow regimes, the street ventilation, the distribution
of the pollutant concentrations and the pollutant residence times.