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Conference Paper: Parameterisation of flows and pollutant transport over idealised urban roughness

TitleParameterisation of flows and pollutant transport over idealised urban roughness
Authors
Liu, CHHo, YKNg, CT
Issue Date2016
Citation
The 96th Annual Meeting of the American Meteorological Society (AMS 2016), New Orleans, LA., 10-14 January 2016. How to Cite?
AbstractAtmospheric flow over urban areas basically is a type of turbulent flow over roughness. The flows and pollutant transport process, especially at the lower part of the boundary layer (BL), is strongly modified due to the presence of building geometry. The aerodynamic resistance exerted by the surface roughness reduces the mean velocity in the lower BL but enhances the turbulence intensity. Moreover, the near-wall impingement structures over rough surfaces are attributed to the flow dynamics aloft, leading to increasing aerodynamic resistance and BL depth. However, the dependence on surface morphology and BL depth is not yet well understood. There is ...
DescriptionNo. J7.2
Persistent Identifierhttp://hdl.handle.net/10722/235024

 

DC FieldValueLanguage
dc.contributor.authorLiu, CH-
dc.contributor.authorHo, YK-
dc.contributor.authorNg, CT-
dc.date.accessioned2016-10-14T13:50:47Z-
dc.date.available2016-10-14T13:50:47Z-
dc.date.issued2016-
dc.identifier.citationThe 96th Annual Meeting of the American Meteorological Society (AMS 2016), New Orleans, LA., 10-14 January 2016.-
dc.identifier.urihttp://hdl.handle.net/10722/235024-
dc.descriptionNo. J7.2-
dc.description.abstractAtmospheric flow over urban areas basically is a type of turbulent flow over roughness. The flows and pollutant transport process, especially at the lower part of the boundary layer (BL), is strongly modified due to the presence of building geometry. The aerodynamic resistance exerted by the surface roughness reduces the mean velocity in the lower BL but enhances the turbulence intensity. Moreover, the near-wall impingement structures over rough surfaces are attributed to the flow dynamics aloft, leading to increasing aerodynamic resistance and BL depth. However, the dependence on surface morphology and BL depth is not yet well understood. There is ...-
dc.languageeng-
dc.relation.ispartofAnnual Meeting of the American Meteorological Society, AMS 2016-
dc.titleParameterisation of flows and pollutant transport over idealised urban roughness-
dc.typeConference_Paper-
dc.identifier.emailLiu, CH: chliu@hkucc.hku.hk-
dc.identifier.authorityLiu, CH=rp00152-
dc.description.naturepostprint-
dc.identifier.hkuros268739-

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