Numerical modelling of transient dispersion of air pollution in perpendicular urban street intersection with detail inclusion of traffic dynamics
by Jiri Pospisil; Miroslav Jicha
International Journal of Environment and Pollution (IJEP), Vol. 65, No. 1/2/3, 2019

Abstract: In this study, the authors focus on the utilisation of computer modelling for the detailed identification of transient pollutants' dispersion in a perpendicular intersection equipped with traffic lights. Passenger cars are considered as the main source of the air pollution in the intersection. Car movement is at the same time a major driving force affecting the air flow in the crossroad area. A model based on an Eulerian-Lagrangian approach to moving objects has been integrated into a commercial CFD software package StarCD. The inclusion of traffic dynamics is used for a correct description of dispersion processes. The air pollution concentration fields were obtained from numerical predictions for traffic light switching periods of 60, 90, and 120 s. The correctness of the developed dispersion model was assessed on the base of NOx concentration measurements carried out in a real city intersection with similar geometry as in the numerical model.

Online publication date: Wed, 28-Aug-2019

The full text of this article is only available to individual subscribers or to users at subscribing institutions.

Existing subscribers:
Go to Inderscience Online Journals to access the Full Text of this article.

Pay per view:
If you are not a subscriber and you just want to read the full contents of this article, buy online access here.

Complimentary Subscribers, Editors or Members of the Editorial Board of the International Journal of Environment and Pollution (IJEP):
Login with your Inderscience username and password:

    Username:        Password:         

Forgotten your password?

Want to subscribe?
A subscription gives you complete access to all articles in the current issue, as well as to all articles in the previous three years (where applicable). See our Orders page to subscribe.

If you still need assistance, please email