Large eddy simulation of the aerodynamic effects of trees on pollutant concentrations in street canyons

Salim Mohamed Salim; Riccardo Buccolieri; Andrew Chan; Silvana Di Sabatino; Siew Cheong Cheah

doi:10.1016/j.proenv.2011.03.003

Large eddy simulation of the aerodynamic effects of trees on pollutant concentrations in street canyons

Salim Mohamed Salim, Riccardo Buccolieri, Andrew Chan, Silvana Di Sabatino, Siew Cheong Cheah

School of Engineering & Physical Sciences

Research output: Contribution to journal › Article › peer-review

11 Citations (Scopus)

Abstract

This paper presents numerical simulations of the aerodynamic effects of trees on the flow field and dispersion of trafficoriginated pollutants in an urban street canyon of W/H = 1 with a perpendicular approach flow. Large Eddy Simulation (LES) is employed for the investigation and is validated against wind tunnel (WT) experiment. Comparisons is made between an empty street canyon and one containing avenue-like tree planting of pore volume, Pvol = 96%. In the presence of trees, both measurements and simulations show considerably larger pollutant concentrations near the leeward wall and slightly lower concentrations near the windward wall in comparison to the tree-free case.

Original language	English
Pages (from-to)	17-24
Number of pages	8
Journal	Procedia Environmental Sciences
Volume	4
DOIs	https://doi.org/10.1016/j.proenv.2011.03.003
Publication status	Published - 2011

Keywords

Street canyons
Trees
Air pollution
CFD
LES

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1016/j.proenv.2011.03.003

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title = "Large eddy simulation of the aerodynamic effects of trees on pollutant concentrations in street canyons",

abstract = "This paper presents numerical simulations of the aerodynamic effects of trees on the flow field and dispersion of trafficoriginated pollutants in an urban street canyon of W/H = 1 with a perpendicular approach flow. Large Eddy Simulation (LES) is employed for the investigation and is validated against wind tunnel (WT) experiment. Comparisons is made between an empty street canyon and one containing avenue-like tree planting of pore volume, Pvol = 96%. In the presence of trees, both measurements and simulations show considerably larger pollutant concentrations near the leeward wall and slightly lower concentrations near the windward wall in comparison to the tree-free case.",

keywords = "Street canyons, Trees, Air pollution, CFD, LES",

author = "Salim, {Salim Mohamed} and Riccardo Buccolieri and Andrew Chan and {Di Sabatino}, Silvana and Cheah, {Siew Cheong}",

note = "Urban Environmental Pollution 2010",

year = "2011",

doi = "10.1016/j.proenv.2011.03.003",

language = "English",

volume = "4",

pages = "17--24",

journal = "Procedia Environmental Sciences",

issn = "1878-0296",

}

TY - JOUR

T1 - Large eddy simulation of the aerodynamic effects of trees on pollutant concentrations in street canyons

AU - Salim, Salim Mohamed

AU - Buccolieri, Riccardo

AU - Chan, Andrew

AU - Di Sabatino, Silvana

AU - Cheah, Siew Cheong

N1 - Urban Environmental Pollution 2010

PY - 2011

Y1 - 2011

N2 - This paper presents numerical simulations of the aerodynamic effects of trees on the flow field and dispersion of trafficoriginated pollutants in an urban street canyon of W/H = 1 with a perpendicular approach flow. Large Eddy Simulation (LES) is employed for the investigation and is validated against wind tunnel (WT) experiment. Comparisons is made between an empty street canyon and one containing avenue-like tree planting of pore volume, Pvol = 96%. In the presence of trees, both measurements and simulations show considerably larger pollutant concentrations near the leeward wall and slightly lower concentrations near the windward wall in comparison to the tree-free case.

AB - This paper presents numerical simulations of the aerodynamic effects of trees on the flow field and dispersion of trafficoriginated pollutants in an urban street canyon of W/H = 1 with a perpendicular approach flow. Large Eddy Simulation (LES) is employed for the investigation and is validated against wind tunnel (WT) experiment. Comparisons is made between an empty street canyon and one containing avenue-like tree planting of pore volume, Pvol = 96%. In the presence of trees, both measurements and simulations show considerably larger pollutant concentrations near the leeward wall and slightly lower concentrations near the windward wall in comparison to the tree-free case.

KW - Street canyons

KW - Trees

KW - Air pollution

KW - CFD

KW - LES

U2 - 10.1016/j.proenv.2011.03.003

DO - 10.1016/j.proenv.2011.03.003

M3 - Article

SN - 1878-0296

VL - 4

SP - 17

EP - 24

JO - Procedia Environmental Sciences

JF - Procedia Environmental Sciences

ER -

Large eddy simulation of the aerodynamic effects of trees on pollutant concentrations in street canyons

Abstract

Keywords

UN SDGs

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