Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Description of pollutant dispersion in an urban street canyon using a two-dimensional lattice model
AbstractThe pollutant dispersion in a street canyon has been described in this work by using an isothermal two-dimensional lattice model coupled to the Smagorinsky sub-grid scale model. The influence of the ratio between the height of the upstream and downstream canyon walls, as well as the gap distance between them on the flow pattern, was analyzed considering the situations of ‘open country’ or isolated street canyon and ‘urban roughness’ in which the influence of an urban fabric was considered. The model determined the trajectories of a large number of passive tracer particles released in the computational domain, making it easy to visualize the flow regimes established in each case. The results agreed with the observations reported from the experiments showing a strong influence on the flow inside the canyon exerted by the upstream landscape configuration.
Description of pollutant dispersion in an urban street canyon using a two-dimensional lattice model
AbstractThe pollutant dispersion in a street canyon has been described in this work by using an isothermal two-dimensional lattice model coupled to the Smagorinsky sub-grid scale model. The influence of the ratio between the height of the upstream and downstream canyon walls, as well as the gap distance between them on the flow pattern, was analyzed considering the situations of ‘open country’ or isolated street canyon and ‘urban roughness’ in which the influence of an urban fabric was considered. The model determined the trajectories of a large number of passive tracer particles released in the computational domain, making it easy to visualize the flow regimes established in each case. The results agreed with the observations reported from the experiments showing a strong influence on the flow inside the canyon exerted by the upstream landscape configuration.
Description of pollutant dispersion in an urban street canyon using a two-dimensional lattice model
Jiménez-Horrnero, F.J. (Autor:in) / Giráldez, J.V. (Autor:in) / Gutiérrez de Ravé, E. (Autor:in) / Moral, F.J. (Autor:in)
Atmospheric Environment ; 41 ; 221-226
21.09.2006
6 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
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Analysis of pollutant dispersion in an urban street canyon
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