Numerical modelling of transient dispersion of air pollution in perpendicular urban street intersection with detail inclusion of traffic dynamics
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26210%2F19%3APU130331" target="_blank" >RIV/00216305:26210/19:PU130331 - isvavai.cz</a>
Result on the web
<a href="http://www.inderscience.com/link.php?id=101834" target="_blank" >http://www.inderscience.com/link.php?id=101834</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1504/IJEP.2019.101834" target="_blank" >10.1504/IJEP.2019.101834</a>
Alternative languages
Result language
angličtina
Original language name
Numerical modelling of transient dispersion of air pollution in perpendicular urban street intersection with detail inclusion of traffic dynamics
Original language description
In this study, the authors focus on the utilisation of computer modelling for the detailed identification of transient pollutants dispersion in an ideal perpendicular intersection equipped with traffic lights. The attention is drawn to the dispersion of general passive scalar (density and diffusivity identical with air) in the ground level of the atmosphere. The modelled crossroad considers 2 lanes in each direction, in both street canyons. Sidewalks are located on either side of the road. The control points used to monitor air pollution are located on both sides of the road, in the middle of the sidewalk width, at the pedestrian head level (1.5 m above the sidewalk). Passenger cars are considered as the main source of the monitored 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 called StarCD. The inclusion of traffic dynamics is a necessary step 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 and corresponding traffic conditions as in the numerical model.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10511 - Environmental sciences (social aspects to be 5.7)
Result continuities
Project
<a href="/en/project/EF16_026%2F0008392" target="_blank" >EF16_026/0008392: Computer Simulations for Effective Low-Emission Energy Engineering</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach
Others
Publication year
2019
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
International journal of environment and pollution
ISSN
0957-4352
e-ISSN
1741-5101
Volume of the periodical
65
Issue of the periodical within the volume
1/2/3
Country of publishing house
CH - SWITZERLAND
Number of pages
13
Pages from-to
71-83
UT code for WoS article
000486899700005
EID of the result in the Scopus database
2-s2.0-85071667622