On the wind flow patterns under neutral and unstable conditions in an urban area

Nezis, AA; Angelidis, DI; Assimakopoulos, VD; Bergeles, GC

dc.contributor.author	Nezis, AA	en
dc.contributor.author	Angelidis, DI	en
dc.contributor.author	Assimakopoulos, VD	en
dc.contributor.author	Bergeles, GC	en
dc.date.accessioned	2014-03-01T02:03:04Z
dc.date.available	2014-03-01T02:03:04Z
dc.date.issued	2011	en
dc.identifier.issn	09574352	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/29345
dc.subject	CFD	en
dc.subject	unstable stratification	en
dc.subject	unstructured Cartesian grid	en
dc.subject	urban street canyon	en
dc.subject	wind tunnel	en
dc.subject.other	Air motion	en
dc.subject.other	Buoyancy induced flow	en
dc.subject.other	Cartesian grid	en
dc.subject.other	Flow profile	en
dc.subject.other	Numerical code	en
dc.subject.other	Pollutant dispersions	en
dc.subject.other	Temperature stratification	en
dc.subject.other	Urban areas	en
dc.subject.other	Urban background	en
dc.subject.other	Urban street canyon	en
dc.subject.other	Wind flow	en
dc.subject.other	Wind-flow pattern	en
dc.subject.other	Atmospheric movements	en
dc.subject.other	Computational fluid dynamics	en
dc.subject.other	Thermal stratification	en
dc.subject.other	Wind tunnels	en
dc.subject.other	Computer integrated manufacturing	en
dc.subject.other	air temperature	en
dc.subject.other	airflow	en
dc.subject.other	algorithm	en
dc.subject.other	anemometer	en
dc.subject.other	atmospheric pollution	en
dc.subject.other	buoyancy forcing	en
dc.subject.other	computational fluid dynamics	en
dc.subject.other	street canyon	en
dc.subject.other	two-dimensional modeling	en
dc.subject.other	urban atmosphere	en
dc.subject.other	wind tunnel	en
dc.subject.other	air pollutant	en
dc.subject.other	airflow	en
dc.subject.other	anemometer	en
dc.subject.other	article	en
dc.subject.other	mathematical analysis	en
dc.subject.other	urban area	en
dc.subject.other	wind	en
dc.title	On the wind flow patterns under neutral and unstable conditions in an urban area	en
heal.type	journalArticle	en
heal.identifier.primary	10.1504/IJEP.2011.047340	en
heal.identifier.secondary	http://dx.doi.org/10.1504/IJEP.2011.047340	en
heal.identifier.secondary	47340	en
heal.publicationDate	2011	en
heal.abstract	Wind flow and pollutant dispersion within urban areas depend on the approaching flow profile and temperature stratification. Thus, the flow field developed under neutral and unstable stratification conditions, within a street-canyon, was studied experimentally and numerically for a two-dimensional urban background set-up. Wind-tunnel measurements were carried out with a triple hot sensor anemometer, while an academically developed CFD κ-ε algorithm was applied, employing an unstructured Cartesian grid. The numerical code compared well with experimental results. Under unstable conditions, intensive mixing exists within the street-canyons and the buoyancy-induced flow affects the vertical air motions within and above them. Copyright © 2011 Inderscience Enterprises Ltd.	en
heal.journalName	International Journal of Environment and Pollution	en
dc.identifier.doi	10.1504/IJEP.2011.047340	en
dc.identifier.volume	47	en
dc.identifier.issue	1-4	en
dc.identifier.spage	257	en
dc.identifier.epage	267	en