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Article: Physical modeling of flow field inside urban street canyons

TitlePhysical modeling of flow field inside urban street canyons
Authors
Issue Date2008
PublisherAmerican Meteorological Society. The Journal's web site is located at http://www.ametsoc.org/ams
Citation
Journal Of Applied Meteorology And Climatology, 2008, v. 47 n. 7, p. 2058-2067 How to Cite?
AbstractThe flow characteristics inside urban street canyons were studied in a laboratory water channel. The approaching flow direction was horizontal and perpendicular to the street axis. The street width was adjusted to form street canyons of aspect ratios 0.5, 1.0, and 2.0. The velocity field and turbulent intensity were measured with a laser Doppler anemometer at various locations within the street canyons, which were used to elucidate the flow pattern inside the street canyons. It was found that the previous numerical modeling results are in good agreement with the current experimental results at most locations. For the street canyon of aspect ratio 0.5, which belongs to the wake interference flow regime, the mean and fluctuating velocity components were more difficult to measure as compared with the other two cases because of its more complicated flow pattern. Some guidelines for numerical modeling were developed based on the measurement results. The data presented in this paper can also be used as a comprehensive database for the validation of numerical models. © 2008 American Meteorological Society.
Persistent Identifierhttp://hdl.handle.net/10722/129146
ISSN
2015 Impact Factor: 2.463
2015 SCImago Journal Rankings: 1.822
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorLi, XXen_HK
dc.contributor.authorLeung, DYCen_HK
dc.contributor.authorLiu, CHen_HK
dc.contributor.authorLam, KMen_HK
dc.date.accessioned2010-12-23T08:32:57Z-
dc.date.available2010-12-23T08:32:57Z-
dc.date.issued2008en_HK
dc.identifier.citationJournal Of Applied Meteorology And Climatology, 2008, v. 47 n. 7, p. 2058-2067en_HK
dc.identifier.issn1558-8424en_HK
dc.identifier.urihttp://hdl.handle.net/10722/129146-
dc.description.abstractThe flow characteristics inside urban street canyons were studied in a laboratory water channel. The approaching flow direction was horizontal and perpendicular to the street axis. The street width was adjusted to form street canyons of aspect ratios 0.5, 1.0, and 2.0. The velocity field and turbulent intensity were measured with a laser Doppler anemometer at various locations within the street canyons, which were used to elucidate the flow pattern inside the street canyons. It was found that the previous numerical modeling results are in good agreement with the current experimental results at most locations. For the street canyon of aspect ratio 0.5, which belongs to the wake interference flow regime, the mean and fluctuating velocity components were more difficult to measure as compared with the other two cases because of its more complicated flow pattern. Some guidelines for numerical modeling were developed based on the measurement results. The data presented in this paper can also be used as a comprehensive database for the validation of numerical models. © 2008 American Meteorological Society.en_HK
dc.languageengen_US
dc.publisherAmerican Meteorological Society. The Journal's web site is located at http://www.ametsoc.org/amsen_HK
dc.relation.ispartofJournal of Applied Meteorology and Climatologyen_HK
dc.rightsJournal of Applied Meteorology and Climatology. Copyright © American Meteorological Society.-
dc.titlePhysical modeling of flow field inside urban street canyonsen_HK
dc.typeArticleen_HK
dc.identifier.emailLeung, DYC:ycleung@hku.hken_HK
dc.identifier.emailLiu, CH:chliu@hkucc.hku.hken_HK
dc.identifier.emailLam, KM:kmlam@hku.hken_HK
dc.identifier.authorityLeung, DYC=rp00149en_HK
dc.identifier.authorityLiu, CH=rp00152en_HK
dc.identifier.authorityLam, KM=rp00134en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1175/2007JAMC1815.1en_HK
dc.identifier.scopuseid_2-s2.0-54049101732en_HK
dc.identifier.hkuros177013en_US
dc.identifier.hkuros145091-
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-54049101732&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume47en_HK
dc.identifier.issue7en_HK
dc.identifier.spage2058en_HK
dc.identifier.epage2067en_HK
dc.identifier.isiWOS:000257718300013-
dc.publisher.placeUnited Statesen_HK
dc.identifier.scopusauthoridLi, XX=8091988100en_HK
dc.identifier.scopusauthoridLeung, DYC=7203002484en_HK
dc.identifier.scopusauthoridLiu, CH=36065161300en_HK
dc.identifier.scopusauthoridLam, KM=7403656958en_HK
dc.identifier.citeulike3036708-

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