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Conference Paper: Analysis of the momentum and pollutant transport at the roof level of 2D idealized street canyons: a large-eddy simulation solution

TitleAnalysis of the momentum and pollutant transport at the roof level of 2D idealized street canyons: a large-eddy simulation solution
Authors
Issue Date2010
PublisherEuropean Geosciences Union. The Journal's web site is located at http://www.geophysical-research-abstracts.net
Citation
The 7th General Assembly of the European Geosciences Union (EGU2010), Vienna, Austria, 2-7 May 2010. In Geophysical Research Abstracts, 2010, v. 12, EGU2010-1486-1 How to Cite?
AbstractTo investigate the detailed momentum and pollutant transports between urban street canyons and the shear layer, a large-eddy simulation (LES) model was developed to calculate the flow and pollutant dispersion in isothermal conditions. The computational domain consisted of three identical two-dimensional (2D) idealized street canyons of unity aspect ratio. The flow field was assumed to be periodic in the horizontal domain boundaries. The subgrid-scale (SGS) stress was calculated by solving the SGS turbulent kinetic energy (TKE) conservation. An area pollutant source with constant pollutant concentration was prescribed on the ground of all streets. Zero pollutant concentration and an open boundary were applied at the domain inflow and outflow, respectively. The quadrant and budget analyses were employed to examine the …
Persistent Identifierhttp://hdl.handle.net/10722/126292

 

DC FieldValueLanguage
dc.contributor.authorCheng, WCen_HK
dc.contributor.authorLiu, CHen_HK
dc.date.accessioned2010-10-31T12:20:25Z-
dc.date.available2010-10-31T12:20:25Z-
dc.date.issued2010en_HK
dc.identifier.citationThe 7th General Assembly of the European Geosciences Union (EGU2010), Vienna, Austria, 2-7 May 2010. In Geophysical Research Abstracts, 2010, v. 12, EGU2010-1486-1en_HK
dc.identifier.urihttp://hdl.handle.net/10722/126292-
dc.description.abstractTo investigate the detailed momentum and pollutant transports between urban street canyons and the shear layer, a large-eddy simulation (LES) model was developed to calculate the flow and pollutant dispersion in isothermal conditions. The computational domain consisted of three identical two-dimensional (2D) idealized street canyons of unity aspect ratio. The flow field was assumed to be periodic in the horizontal domain boundaries. The subgrid-scale (SGS) stress was calculated by solving the SGS turbulent kinetic energy (TKE) conservation. An area pollutant source with constant pollutant concentration was prescribed on the ground of all streets. Zero pollutant concentration and an open boundary were applied at the domain inflow and outflow, respectively. The quadrant and budget analyses were employed to examine the …-
dc.languageengen_HK
dc.publisherEuropean Geosciences Union. The Journal's web site is located at http://www.geophysical-research-abstracts.net-
dc.relation.ispartofGeophysical Research Abstracts-
dc.rightsCreative Commons: Attribution 3.0 Hong Kong License-
dc.rightsAuthor owns CopyRight-
dc.titleAnalysis of the momentum and pollutant transport at the roof level of 2D idealized street canyons: a large-eddy simulation solutionen_HK
dc.typeConference_Paperen_HK
dc.identifier.emailLiu, CH: chliu@hkucc.hku.hken_HK
dc.identifier.authorityLiu, CH=rp00152en_HK
dc.description.naturepublished_or_final_version-
dc.identifier.hkuros179362en_HK
dc.identifier.volume12-
dc.description.otherThe 7th General Assembly of the European Geosciences Union (EGU2010), Vienna, Austria, 2-7 May 2010. In Geophysical Research Abstracts, 2010, v. 12, EGU2010-1486-1-

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