Buoyancy-assisted mixed convection in a vertical channel with spatially periodic wall temperature

dc.contributor.author	Δριτσελής, Χρήστος Δ.	el
dc.contributor.author	Ιατρίδης, Α.Ι.	el
dc.contributor.author	Σαρρής, Ιωάννης Ε.	el
dc.contributor.author	Βλάχος, Νικόλας Σ.	el
dc.date.accessioned	2015-06-07T19:13:28Z
dc.date.available	2015-06-07T19:13:28Z
dc.date.issued	2015-06-07
dc.identifier.uri	http://hdl.handle.net/11400/15534
dc.rights	Αναφορά Δημιουργού-Μη Εμπορική Χρήση-Όχι Παράγωγα Έργα 3.0 Ηνωμένες Πολιτείες	*
dc.rights.uri	http://creativecommons.org/licenses/by-nc-nd/3.0/us/	*
dc.source	http://www.scopus.com/record/display.url?origin=recordpage&eid=2-s2.0-84871713441&citeCnt=0&noHighlight=false&sort=plf-f&src=s&sid=62A9054A815E25F2D3896574D4CE2724.fM4vPBipdL1BpirDq5Cw%3a5800&sot=autdocs&sdt=autdocs&sl=18&s=AU-ID%2835848021500%29&relpos=5	en
dc.subject	Μήκος του καναλιού
dc.subject	Κρίσιμη αναλογία
dc.subject	Πεδία ροής
dc.subject	Τοπικά ελάχιστα
dc.subject	Όριο θερμοκρασίας
dc.subject	Channel length
dc.subject	Critical ratio
dc.subject	Flow domains
dc.subject	Local minimums
dc.subject	Temperature boundary
dc.title	Buoyancy-assisted mixed convection in a vertical channel with spatially periodic wall temperature	en
heal.type	journalArticle
heal.classification	Τεχνολογία
heal.classification	Μηχανική
heal.classification	Technology
heal.classification	Engineering
heal.classificationURI	N/A-Τεχνολογία
heal.classificationURI	N/A-Μηχανική
heal.classificationURI	http://id.loc.gov/authorities/subjects/sh85133147
heal.classificationURI	http://skos.um.es/unescothes/C01363
heal.identifier.secondary	DOI: 10.1016/j.ijthermalsci.2012.10.006
heal.language	en
heal.access	campus
heal.recordProvider	Τεχνολογικό Εκπαιδευτικό Ίδρυμα Αθήνας. Σχολή Τεχνολογικών Εφαρμογών. Τμήμα Μηχανικών Ενεργειακής Τεχνολογίας Τ.Ε.	el
heal.publicationDate	2013-03
heal.bibliographicCitation	Dritselis, C.D., Iatridis, A.J., Sarris, I.E. and Vlachos, N.S. (2013) Buoyancy-assisted mixed convection in a vertical channel with spatially periodic wall temperature. International Journal of Thermal Sciences. [Online] 65, pp.28-38. Available from: http://www.scopus.com [Accessed 07/06/2015]	en
heal.abstract	The influence of a spatially periodic temperature boundary condition on the laminar mixed convection in an upward flow between two vertical parallel plates is numerically studied. A detailed assessment is presented of the effects of the Grashof and Reynolds numbers, the channel length, and the wavelength of the periodic temperature distribution at the colder wall on the flow and thermal characteristics. It is found that, above a critical ratio of Grashof-to-Reynolds numbers, the flow gradually changes into a multi-cellular regime, with periodic features that match the periodicity of the boundary temperature distribution. Local recirculating zones are formed near the colder wall with size and strength that are increased with increasing ratio of Grashof-to-Reynolds numbers, periodicity of the flow domain and/or wavelength of the spatially periodic wall temperature. The temperature field exhibits a variation in the vertical direction affecting the wall heat transfer with increasing Grashof and Reynolds numbers. The wall heat fluxes are initially decreased acquiring a local minimum value and are subsequently increased with increasing ratio of Grashof-to-Reynolds numbers, while they are reduced with increasing the channel length.	en
heal.publisher	Elsevier	en
heal.journalName	International Journal of Thermal Sciences	en
heal.journalType	peer-reviewed
heal.fullTextAvailability	true