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Wind-tunnel modelling and numerical simulation within urban intersection
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SYSNO ASEP 0086138 Document Type C - Proceedings Paper (int. conf.) R&D Document Type Conference Paper Title Wind-tunnel modelling and numerical simulation within urban intersection Title Fyzikální modelování a numerická simulace proudění v městské křižovatce Author(s) Kellnerová, Radka (UT-L) RID, ORCID
Yassin, M. (EG)
Jaňour, Zbyněk (UT-L) RID, ORCIDSource Title Physmod 2007. - Orleáns : University of Orléans, 2007 / Aubrun S. - ISBN 2-913454-32-1 Pages s. 231-235 Number of pages 5 s. Action International Workshop on Physical Modelling of Flow and Dispersion Phenomena Event date 29.08.2007-31.08.2007 VEvent location Orléans Country FR - France Event type WRD Language eng - English Country FR - France Keywords canopy layer ; canyon intersection ; traffic pollution Subject RIV DG - Athmosphere Sciences, Meteorology R&D Projects OC 113 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) CEZ AV0Z20760514 - UT-L (2005-2011) Annotation Dispersion of emissions from vehicle traffic was modeled by physical modelling method. The model represents an inner-city intersection that was scaled down to 1:200. The velocity field and the corresponding concentration field were investigated inside an intersection and near an entrance of street canyon in detail. The significant accumulation occurs inside the corner vortexes near the entry of the canyon. The values of concentration were three times higher here than elsewhere and furthermore, dangerous values reaches up to the roof level. Further in the street, total level of concentration decreases due to development of vertical vortex and subsequent improvement of ventilation, but the leeward side shows the higher concentration than the windward side due Workplace Institute of Thermomechanics Contact Marie Kajprová, kajprova@it.cas.cz, Tel.: 266 053 154 ; Jana Lahovská, jaja@it.cas.cz, Tel.: 266 053 823 Year of Publishing 2008
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