Impinging jet cooling on concave surfaces

Souris, N; Liakos, H; Founti, M

dc.contributor.author	Souris, N	en
dc.contributor.author	Liakos, H	en
dc.contributor.author	Founti, M	en
dc.date.accessioned	2014-03-01T01:20:36Z
dc.date.available	2014-03-01T01:20:36Z
dc.date.issued	2004	en
dc.identifier.issn	0001-1541	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/15983
dc.subject	Concave surface	en
dc.subject	Impinging jet	en
dc.subject	Jet impingement cooling	en
dc.subject	K-ε model	en
dc.subject	Reynolds stress model	en
dc.subject	Wall jet	en
dc.subject.classification	Engineering, Chemical	en
dc.subject.other	Costs	en
dc.subject.other	Jets	en
dc.subject.other	Nozzles	en
dc.subject.other	Reynolds number	en
dc.subject.other	Turbulence	en
dc.subject.other	Jet impingement cooling	en
dc.subject.other	Reynolds stress model	en
dc.subject.other	Cooling	en
dc.subject.other	cooling	en
dc.subject.other	impingement	en
dc.subject.other	jet	en
dc.subject.other	mathematical analysis	en
dc.subject.other	model	en
dc.subject.other	Reynolds number	en
dc.subject.other	article	en
dc.subject.other	cooling	en
dc.subject.other	flow rate	en
dc.subject.other	geometry	en
dc.subject.other	mathematical model	en
dc.subject.other	stress	en
dc.subject.other	surface property	en
dc.title	Impinging jet cooling on concave surfaces	en
heal.type	journalArticle	en
heal.identifier.primary	10.1002/aic.10171	en
heal.identifier.secondary	http://dx.doi.org/10.1002/aic.10171	en
heal.language	English	en
heal.publicationDate	2004	en
heal.abstract	The numerical modeling of jet impingement cooling onto a semicircular concave surface is reported. The performance of two-equation turbulence models (such as the k-epsilon model) is evaluated vs. the Reynolds stress model proposed. The Reynolds-averaged momentum and energy equations are solved together with. equations for the turbulence models, using a fully unstructured control volume method and a second-order high-resolution differencing scheme. Variations of jet Reynolds numbers of the spacing between the nozzle and the concave surface, as well as of the distance from the stagnation point in the circumferential direction, are considered. The predicted results are validated against experimental data. The developed approach yields low-cost and accurate predictions of processes where jet impingement cooling is involved. It can assist the design of relevant applications, with relative ease, especially in view of the enhanced heat transfer encountered in the concave surface jet impingement. (C) 2004 American Institute of Chemical Engineers.	en
heal.publisher	JOHN WILEY & SONS INC	en
heal.journalName	AIChE Journal	en
dc.identifier.doi	10.1002/aic.10171	en
dc.identifier.isi	ISI:000222891100003	en
dc.identifier.volume	50	en
dc.identifier.issue	8	en
dc.identifier.spage	1672	en
dc.identifier.epage	1683	en