Large-Eddy Simulation of Flow and Pollutant Transport in Street Canyons of Different Building-Height-to-Street-Width Ratios
نویسندگان
چکیده
منابع مشابه
effect of sub-grid scales on large eddy simulation of particle deposition in a turbulent channel flow
چکیده ندارد.
15 صفحه اولNumerical Simulation of Wind Flow and Pollution Transport in Urban Street Canyons
In this study, a three-dimensional numerical simulation of the wind flow and pollutant transport in street canyons is carried out by a new specific solver, which is developed and coupled into an open source CFD tool box, the OpenFOAM package. The new model has been applied to study the effect of roof shapes and building heights on the flow patterns and pollutant transports in the street canyons...
متن کاملDynamical Modeling of Stochastic Wind Flow in Street Canyons
For decades, the borders of building studies were restricted up to the exterior walls. With better understanding the side effect of urbanization on human health and with excessive progress in new investigation tools, the area of building studies were enlarged to neighborhood environment where mass and air transport vividly interacts with the buildings. Unlike the indoor studies, one can emphasi...
متن کاملLarge-eddy simulation of reactive pollutant dispersion in a street canyon using a subgrid scale variance model of concentration field
ABSTRACT: Bi-molecular reactions can affect the transport of air pollutants in urban street canyons. In numerical simulations, we need to evaluate the correlation between the concentrations of the reactants to know the reaction rate. In this paper, we examine the effects of the subgrid scale (SGS) on the reaction rate in large-eddy simulations (LESs). LESs coupled with an SGS variance model are...
متن کاملModelling of Air Quality in Street Canyons
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ژورنال
عنوان ژورنال: Journal of Applied Meteorology
سال: 2004
ISSN: 1520-0450,0894-8763
DOI: 10.1175/jam2143.1