File Download
Supplementary

Conference Paper: On plume dispersion over two-dimensional urban-like idealized roughness elements with height variation

TitleOn plume dispersion over two-dimensional urban-like idealized roughness elements with height variation
Authors
Issue Date2013
Citation
The 2013 European and African Conference on Wind Engineering (EACWE 2013), Cambridge, UK., 7-11 July 2013. How to Cite?
AbstractA series of large-eddy simulation (LES) models over two-dimensional (2D) urban-like idealized roughness elements with height variation were performed. Results show that building-height variability (BHV) could enhance the aerodynamic resistance of the urban surfaces. Both the air exchange rate (ACH) and the vertical dispersion coefficient ðz increase with increasing the friction factor, implying that the air quality in both street canyons and urban boundary layer (UBL) could be improved by increasing the surface roughness via BHV. In addition, the parameters used in the estimates of dispersion coefficient are modified substantially by the friction factor, suggesting that friction factor could be used to parameterize dispersion coefficient of urban Gaussian plume model.
Persistent Identifierhttp://hdl.handle.net/10722/190050

 

DC FieldValueLanguage
dc.contributor.authorWong, CCCen_US
dc.contributor.authorLiu, CHen_US
dc.date.accessioned2013-09-17T15:04:43Z-
dc.date.available2013-09-17T15:04:43Z-
dc.date.issued2013en_US
dc.identifier.citationThe 2013 European and African Conference on Wind Engineering (EACWE 2013), Cambridge, UK., 7-11 July 2013.en_US
dc.identifier.urihttp://hdl.handle.net/10722/190050-
dc.description.abstractA series of large-eddy simulation (LES) models over two-dimensional (2D) urban-like idealized roughness elements with height variation were performed. Results show that building-height variability (BHV) could enhance the aerodynamic resistance of the urban surfaces. Both the air exchange rate (ACH) and the vertical dispersion coefficient ðz increase with increasing the friction factor, implying that the air quality in both street canyons and urban boundary layer (UBL) could be improved by increasing the surface roughness via BHV. In addition, the parameters used in the estimates of dispersion coefficient are modified substantially by the friction factor, suggesting that friction factor could be used to parameterize dispersion coefficient of urban Gaussian plume model.-
dc.languageengen_US
dc.relation.ispartofEuropean and African Conference on Wind Engineering, EACWE 2013en_US
dc.rightsCreative Commons: Attribution 3.0 Hong Kong License-
dc.titleOn plume dispersion over two-dimensional urban-like idealized roughness elements with height variationen_US
dc.typeConference_Paperen_US
dc.identifier.emailWong, CCC: coccwong@hku.hken_US
dc.identifier.emailLiu, CH: chliu@hku.hk-
dc.identifier.authorityLiu, CH=rp00152en_US
dc.description.naturepostprint-
dc.identifier.hkuros224523en_US
dc.customcontrol.immutablesml 140415-

Export via OAI-PMH Interface in XML Formats


OR


Export to Other Non-XML Formats