Original title: Wind tunnel modelling of flow and dispersion in the street canyon
Authors: Bezpalcová, Klára ; Leitl, B. ; Jaňour, Zbyněk
Document type: Papers
Conference/Event: Colloquium Fluid dynamics 2002, Praha (CZ), 2002-10-23 / 2002-10-25
Year: 2002
Language: eng
Abstract: There used method of physical moddeling,which is successful in solution of the atmospheric boundary layer problems.The first step was to estabilish charakteristics of the boundary layer in thewind tunnel.The measurement was done on a very simple model of a steet canyon. Atfirst there was measured a flow field and its charakteristics as the mean velocity,the intensity of turbulence and the shear stress by the method of the Laser DopplerAnemometry. Flame Ionization Detector was used for measurements of the concentration of apassive contamination from a line source. There was estimated the critical Building Reynolds Numberfor this setup on the basis of the measurement of concentration. Finally themeasured dimensionless concentration was used to estimete a concentration ofthe air pollution in a real street in a urban area and this estimate was compared with the pollutant limits.
Keywords: air pollution; physical modelling; street canyon
Project no.: OC 715.10
Funding provider: GA MŠk
Host item entry: Colloquium Fluid Dynamics 2002, ISBN 80-85918-77-3

Institution: Institute of Thermomechanics AS ČR (web)
Document availability information: Fulltext is available at the institute of the Academy of Sciences.
Original record: http://hdl.handle.net/11104/0107764

Permalink: http://www.nusl.cz/ntk/nusl-31462


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