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Conference Paper: Parameterisation of flows and pollutant transport over idealised urban roughness
Title | Parameterisation of flows and pollutant transport over idealised urban roughness |
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Authors | |
Issue Date | 2016 |
Citation | The 96th Annual Meeting of the American Meteorological Society (AMS 2016), New Orleans, LA., 10-14 January 2016. How to Cite? |
Abstract | Atmospheric 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 ... |
Description | No. J7.2 |
Persistent Identifier | http://hdl.handle.net/10722/235024 |
DC Field | Value | Language |
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dc.contributor.author | Liu, CH | - |
dc.contributor.author | Ho, YK | - |
dc.contributor.author | Ng, CT | - |
dc.date.accessioned | 2016-10-14T13:50:47Z | - |
dc.date.available | 2016-10-14T13:50:47Z | - |
dc.date.issued | 2016 | - |
dc.identifier.citation | The 96th Annual Meeting of the American Meteorological Society (AMS 2016), New Orleans, LA., 10-14 January 2016. | - |
dc.identifier.uri | http://hdl.handle.net/10722/235024 | - |
dc.description | No. J7.2 | - |
dc.description.abstract | Atmospheric 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.language | eng | - |
dc.relation.ispartof | Annual Meeting of the American Meteorological Society, AMS 2016 | - |
dc.title | Parameterisation of flows and pollutant transport over idealised urban roughness | - |
dc.type | Conference_Paper | - |
dc.identifier.email | Liu, CH: chliu@hkucc.hku.hk | - |
dc.identifier.authority | Liu, CH=rp00152 | - |
dc.description.nature | postprint | - |
dc.identifier.hkuros | 268739 | - |