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Numerical simulation on pollutant dispersion from vehicle exhaust in street configurations
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SYSNO ASEP 0341207 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Numerical simulation on pollutant dispersion from vehicle exhaust in street configurations Tvůrce(i) Yassin, Mohamed F. (EG)
Kellnerová, Radka (UT-L) RID, ORCID
Jaňour, Zbyněk (UT-L) RID, ORCIDZdroj.dok. Environmental Monitoring and Assessment. - : Springer - ISSN 0167-6369
Roč. 156, 1-4 (2009), s. 257-273Poč.str. 17 s. Jazyk dok. eng - angličtina Země vyd. NL - Nizozemsko Klíč. slova atmospheric turbulent ; CFD model ; pollutant dispersion Vědní obor RIV DG - Vědy o atmosféře, meteorologie CEZ AV0Z20760514 - UT-L (2005-2011) UT WOS 000268776400020 DOI 10.1007/s10661-008-0482-4 Anotace The impact of the street configurations on pollutants dispersion from vehicles exhausts within urban canyons was numerically investigated using a computational fluid dynamics (CFD) model. Three-dimensional flow and dispersion of gaseous pollutants were modeled using standard k-epsilon turbulence model, which was numerically solved based on Reynolds-averaged Navier-- Stokes equations by the commercial CFD code FLUENT. The concentration fields in the urban canyons were examined in three cases of street configurations: (1) a regular-shaped intersection, (2) a T-shaped intersection and (3) a Skew-shaped crossing intersection. Vehicle emissions were simulated as double line sources along the street. The numerical model was validated against wind tunnel results in order to optimize the turbulence model. Numerical predictions agreed reasonably well with wind tunnel results. Pracoviště Ústav termomechaniky Kontakt Marie Kajprová, kajprova@it.cas.cz, Tel.: 266 053 154 ; Jana Lahovská, jaja@it.cas.cz, Tel.: 266 053 823 Rok sběru 2010
Počet záznamů: 1