Název:
Wind tunnel measurement of turbulent and advective scalar fluxes, case study on an intersection ventilation
Autoři:
Kukačka, Libor ; Nosek, Štěpán ; Kellnerová, Radka ; Jurčáková, Klára ; Jaňour, Zbyněk Typ dokumentu: Příspěvky z konference Konference/Akce: Experimental Fluid Mechanics 2011, Jičín (CZ), 2011-11-22 / 2011-11-25
Rok:
2011
Jazyk:
eng
Abstrakt: The objective of this study is to determine processes of vertical ventilation above the X-shaped intersection in an idealised symmetric urban area in several approach flow directions. An experimental set-up for simultaneous measurement of the flow velocity and the tracer gas concentration was assembled. Vertical advective and turbulent fluxes of passive contaminant were computed from synchronised measured velocity and concentration signals in a regular grid placed at the roof top level above the studied intersection. Spatial distribution and contributions of the turbulent transport to ventilation of the area were determined.
Klíčová slova:
air pollution; atmospheric boundary layer; contaminant spreading; scalar fluxes; wind tunnel modelling Číslo projektu: CEZ:AV0Z20760514 (CEP) Zdrojový dokument: Experimental Fluid Mechanics 2011, ISBN 978-80-7372-784-0 Poznámka: Související webová stránka: www.kez.tul.cz
Instituce: Ústav termomechaniky AV ČR
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Informace o dostupnosti dokumentu:
Dokument je dostupný v příslušném ústavu Akademie věd ČR. Původní záznam: http://hdl.handle.net/11104/0204652