2009
DOI: 10.1127/0941-2948/2009/0361
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Numerical modeling of flow and pollutant dispersion in street canyons with tree planting

Abstract: Numerical simulations of the impact of tree planting on airflow and traffic pollutant dispersion in urban street canyons have been performed using the commercial CFD (Computational Fluid Dynamics) code MISKAM. A k-ε turbulence model including additional terms for the treatment of vegetation, has been employed to close the Reynolds-averaged-Navier-Stokes (RANS) equations. The numerical results were compared to wind tunnel data. In the case of the investigated wind direction perpendicular to the street axis, the… Show more

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Cited by 105 publications
(44 citation statements)
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“…Similar behaviour was observed inside a street canyon in simulations performed with the same code by [27].…”
Section: Northerly Wind Directionsupporting
confidence: 80%
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“…Similar behaviour was observed inside a street canyon in simulations performed with the same code by [27].…”
Section: Northerly Wind Directionsupporting
confidence: 80%
“…[24] and [25] used the MUST data set for evaluation, testing with other data sets was performed by [26]. The vegetation model of MISKAM was evaluated by [27] and [28].…”
Section: Numerical Setup 31 the Miskam Modelmentioning
confidence: 99%
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“…Balczo et al, 2009;Buccolieri et al, 2011Buccolieri et al, , 2009Gromke and Ruck, 2012Gromke, 2011;Gromke et al, 2008;Li et al, 2013;Moonen et al, 2013;Salim et al, 2011;Vos et al, 2013;Wania et al, 2012), qualitative and not only quantitative changes in the flow field were observed at the neighborhood scale. The qualitative changes indicate on the one side the necessity to perform studies at the urban neighborhood rather than at the street canyon scale and on the other side to account for avenue-trees, or more general all types of vegetation typical for built-up environments, in microscale urban air quality studies.…”
Section: Discussionmentioning
confidence: 91%
“…(Balczo et al, 2009;Buccolieri et al, 2009;Gromke and Ruck, 2012Gromke, 2011;Gromke et al, 2008;Li et al, 2013;Moonen et al, 2013;Salim et al, 2011). The reason for this is the flow resistance of tree crowns which slows down the wind and reduces the air exchange between the street canyon and surrounding.…”
Section: Introductionmentioning
confidence: 99%