Ventilation of idealised urban area, LES and wind tunnel experiment

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388998%3A_____%2F14%3A00427650" target="_blank" >RIV/61388998:_____/14:00427650 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1051/epjconf/20146702062" target="_blank" >http://dx.doi.org/10.1051/epjconf/20146702062</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1051/epjconf/20146702062" target="_blank" >10.1051/epjconf/20146702062</a>

Result language
angličtina
Original language name
Ventilation of idealised urban area, LES and wind tunnel experiment
Original language description
In order to estimate the ventilation of vehicle pollution within street canyons, a wind tunnel experiment and a large eddy simulation (LES) was performed. A model of an idealised urban area with apartment houses arranged to courtyards was designed according to common Central European cities. In the wind tunnel, we assembled a set-up for simultaneous measurement of vertical velocity and tracer gas concentration. Due to the vehicle traffic emissions modelling, a new line source of tracer gas was designedand built into the model. As a computational model, the LES model solving the incompressible Navier-Stokes equations was used. In this paper, we focused on the street canyon with the line source situated perpendicular to an approach flow. Vertical and longitudinal velocity components of the flow with the pollutant concentration were obtained from two horizontal grids placed in different heights above the street canyon. Vertical advective and turbulent pollution fluxes were computed from
Czech name
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Czech description
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Project
<a href="/en/project/GAP101%2F12%2F1554" target="_blank" >GAP101/12/1554: Experimental study of organised structures in turbulent boundary layer above rough surface with obstacles</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2014
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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