Turbulent flow and scalar fluxes characteristics, case study on an intersection ventilation

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388998%3A_____%2F12%3A00376042" target="_blank" >RIV/61388998:_____/12:00376042 - 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
Turbulent flow and scalar fluxes characteristics, case study on an intersection ventilation
Original language description
The objective of this study is to determine processes of pollution ventilation in the X-shaped street intersection within an idealized symmetric urban area for the changing approach flow direction. A unique experimental set-up for simultaneous wind tunnel measurement of the flow velocity and the tracer gas concentration in a high temporal resolution is assembled. Advective horizontal and vertical scalar fluxes are computed from averaged measured velocity and concentration data within the street intersection. Vertical turbulent scalar fluxes are computed from synchronized velocity and concentration signals measured in the plane above the intersection. All results are obtained for five approach flow directions. The influence of the approach flow to the advective and turbulent fluxes is determined. The contribution of the advective and turbulent flux to the ventilation is discussed. Wind direction with the best dispersive conditions in the area is found.
Czech name
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Czech description
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Publication year
2012
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection
8th International Conference on Air Quality Science and Application
ISBN
978-1-907396-80-9
ISSN
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e-ISSN
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Number of pages
4
Pages from-to
"S.1"-"4"
Publisher name
University of Hertfordshire
Place of publication
Hatfield
Event location
Atheny
Event date
Mar 19, 2012
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
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