ROLE OF INDIVIDUAL BUILDINGS IN SCALAR TRANSFER

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388998%3A_____%2F09%3A00331558" target="_blank" >RIV/61388998:_____/09:00331558 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Result language
angličtina
Original language name
ROLE OF INDIVIDUAL BUILDINGS IN SCALAR TRANSFER
Original language description
The vertical ventilation of a gaseous pollutant released at the street level to the relatively unobstructed flow above the urban canopy is the main interest of our study. Simultaneous measurement of passive tracer concentration and vertical wind component with high temporal resolution is very unique technique and allows us to directly derive the advective and turbulent vertical scalar transfer terms. Comparison of the measurements within 18 different arrangements of idealised urban canopies (with different packing densities, building layouts, and height variations) is shown. Both advective and turbulent vertical scalar transfer is enhanced in denser set-ups and set-ups with high variability of building heights. The individual buildings and their uniqueheights are important for the advective vertical transport and this phenomenon is stronger for denser set-ups. The turbulent vertical transport characteristics are mainly given by general urban roughness performance.
Czech name
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Czech description
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Publication year
2009
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection
Proceedings of the Conference on Physical Modelling of Flow and Dispersion Phenomena
ISBN
978-2-930389-42-7
ISSN
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e-ISSN
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Number of pages
8
Pages from-to
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Publisher name
von Karman Institute for Fluid Dynamics
Place of publication
Rhode-St-Genése
Event location
Rhode-St-Genése
Event date
Aug 24, 2009
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
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