Počet záznamů: 1
Lateral transport of traffic pollutants in complex urban area
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SYSNO ASEP 0491352 Druh ASEP C - Konferenční příspěvek (mezinárodní konf.) Zařazení RIV D - Článek ve sborníku Název Lateral transport of traffic pollutants in complex urban area Tvůrce(i) Kluková, Zuzana (UT-L) ORCID
Nosek, Štěpán (UT-L) RID, ORCID
Jaňour, Zbyněk (UT-L) RID, ORCID
Kukačka, L. (CZ)Číslo článku 02125 Zdroj.dok. EPJ Web of Conferences. - Les Ulis : Cedex: EDP Sciences, 2018 Poč.str. 7 s. Forma vydání Online - E Akce EFM17 – Experimental Fluid Mechanics 2017 Datum konání 21.11.2017 - 24.11.2017 Místo konání Mikulov Země CZ - Česká republika Typ akce WRD Jazyk dok. eng - angličtina Země vyd. FR - Francie Klíč. slova pollution flux ; street canyon ; measurements near walls ; wind tunnel Vědní obor RIV DG - Vědy o atmosféře, meteorologie Obor OECD Meteorology and atmospheric sciences Institucionální podpora UT-L - RVO:61388998 UT WOS 000454317800126 DOI 10.1051/epjconf/201818002125 Anotace Owing to the spatial variability of an urban area, even the transport of passive scalar is complex. The examination of the pollutant transport in such turbulent flow as occur within the urban canopy requires the measurements not only the advective but also the turbulent part of this transport. However, recent measurement techniques for the turbulent transport have their limitations. In particular, these measurements are very demanding if one needs to analyze the ventilation processes of the street through the entire streetcanyon openings and which needs to be performed also in the positions where the handling with the measurement instruments might comprise a complex issue or is even impossible. Thus we present a comparison of two methods for the assessment of turbulent and advective pollution fluxes through the lateral openings of two different street canyons with respect to the wind direction and the roof-height nonuniformity to evaluate the importance of the measurement of these fluxes nearby the street-canyon walls. Both of them are based on the simultaneous point measurement of concentration and lateral velocity component and the interpolation between the last measured point and the street-canyon borders, but in the second method the measured area is extended from 77% to 84% of the total area of the lateral openings. 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 2019 Elektronická adresa https://www.epj-conferences.org/articles/epjconf/pdf/2018/15/epjconf_efm2018_02125.pdf
Počet záznamů: 1