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Conference Paper: Numerical modeling of flows and pollutant dispersion within and above urban street canyons under unstable thermal stratification by large-eddy simulation
Title | Numerical modeling of flows and pollutant dispersion within and above urban street canyons under unstable thermal stratification by large-eddy simulation |
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Authors | |
Keywords | Earth sciences |
Issue Date | 2013 |
Publisher | Copernicus GmbH. The Journal's web site is located at http://www.geophysical-research-abstracts.net |
Citation | The 10th General Assembly of the European Geosciences Union (EGU 2013), Vienna, Austria, 7-12 April 2013. In Geophysical Research Abstracts, 2013, v. 15, no. EGU2013-1974 How to Cite? |
Abstract | Recently, with the ever increasing urban areas in developing countries, the problem of air pollution due to vehicular exhaust arouses the concern of different groups of people. Understanding how different factors, such as urban morphology, meteorological conditions and human activities, affect the characteristics of street canyon ventilation, pollutant dispersion above urban areas and pollutant re-entrainment from the shear layer can help us improve air pollution control strategies. Among the factors mentioned above, thermal stratification is a significant one determining the pollutant transport behaviors in certain situation, e.g. when the urban surface is heated by strong solar radiation, which, however, is still not widely explored. The objective of this study is to gain an in-depth understanding of the effects of unstable thermal stratification on the flows and pollutant dispersion within and above urban street canyons through numerical modeling using large-... |
Persistent Identifier | http://hdl.handle.net/10722/190040 |
ISSN |
DC Field | Value | Language |
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dc.contributor.author | Chan, MC | en_US |
dc.contributor.author | Liu, CH | en_US |
dc.date.accessioned | 2013-09-17T15:04:42Z | - |
dc.date.available | 2013-09-17T15:04:42Z | - |
dc.date.issued | 2013 | en_US |
dc.identifier.citation | The 10th General Assembly of the European Geosciences Union (EGU 2013), Vienna, Austria, 7-12 April 2013. In Geophysical Research Abstracts, 2013, v. 15, no. EGU2013-1974 | en_US |
dc.identifier.issn | 1607-7962 | - |
dc.identifier.uri | http://hdl.handle.net/10722/190040 | - |
dc.description.abstract | Recently, with the ever increasing urban areas in developing countries, the problem of air pollution due to vehicular exhaust arouses the concern of different groups of people. Understanding how different factors, such as urban morphology, meteorological conditions and human activities, affect the characteristics of street canyon ventilation, pollutant dispersion above urban areas and pollutant re-entrainment from the shear layer can help us improve air pollution control strategies. Among the factors mentioned above, thermal stratification is a significant one determining the pollutant transport behaviors in certain situation, e.g. when the urban surface is heated by strong solar radiation, which, however, is still not widely explored. The objective of this study is to gain an in-depth understanding of the effects of unstable thermal stratification on the flows and pollutant dispersion within and above urban street canyons through numerical modeling using large-... | - |
dc.language | eng | en_US |
dc.publisher | Copernicus GmbH. The Journal's web site is located at http://www.geophysical-research-abstracts.net | - |
dc.relation.ispartof | Geophysical Research Abstracts | en_US |
dc.rights | Author holds the copyright | - |
dc.subject | Earth sciences | - |
dc.title | Numerical modeling of flows and pollutant dispersion within and above urban street canyons under unstable thermal stratification by large-eddy simulation | en_US |
dc.type | Conference_Paper | en_US |
dc.identifier.email | Chan, MC: zz047@hku.hk | en_US |
dc.identifier.email | Liu, CH: chliu@hku.hk | en_US |
dc.identifier.authority | Liu, CH=rp00152 | en_US |
dc.description.nature | published_or_final_version | - |
dc.identifier.hkuros | 224512 | en_US |
dc.identifier.volume | 15 | - |
dc.publisher.place | Germany | - |
dc.identifier.issnl | 1029-7006 | - |