Investigation of film cooling effectiveness and heat transfer coefficient for rectangular holes with two rows

Basit Öğe Kaydı
dc.authoridAkdag, Unal -- 0000-0002-1149-7425
dc.contributor.authorKoç, İbrahim
dc.contributor.authorİslamoğlu, Yaşar
dc.contributor.authorAkdağ, Ünal
dc.date.accessioned13.07.201910:50:10
dc.date.accessioned2019-07-16T09:14:49Z
dc.date.available13.07.201910:50:10
dc.date.available2019-07-16T09:14:49Z
dc.date.issued2009
dc.departmentMühendislik Fakültesi
dc.description.abstractPurpose - The purpose of this paper is to investigate the film cooling effectiveness and heat transfer coefficient in a flat plate with two rows of rectangular injection holes. Design/methodology/approach - Experimental and numerical investigation of film cooling effectiveness in a flat plate with two rows which are rectangular injection holes. The liquid crystal technique has been used for measuring the heat transfer coefficients on the mixture region. Three injection holes in model are in a single row. The holes are rectangular cross section and they are 9 x 6.5 mm. The injection holes are inclined at 30 degrees along the mainstream direction. The blowing ratios are from 0.5 to 2.0. The experiments and their computational models are established to investigate its effects at the 330 and 340 and 350 K injection temperatures and the different blowing ratios. Findings - The results show that the film cooling effectiveness and heat transfer coefficient of a given flat plate surface, both along the mainstream and lateral direction, depend on the optimum selection of parameters. In this study, the highest effectiveness is determined at a blowing ratio of 0.5. Further increasing the ratio results in reverse effect on the film cooling effectiveness. Originality/value - It is the fist time the film cooling effectiveness is compared at the rectangular injection holes with two rows as experimental and numerical.
dc.identifier.doi10.1108/00022660910941794
dc.identifier.endpage117en_US
dc.identifier.issn1748-8842
dc.identifier.issue2en_US
dc.identifier.scopusqualityQ2
dc.identifier.startpage106en_US
dc.identifier.urihttps://doi.org/10.1108/00022660910941794
dc.identifier.urihttps://hdl.handle.net/20.500.12451/4162
dc.identifier.volume81en_US
dc.identifier.wosWOS:000265152900002
dc.identifier.wosqualityN/A
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherEmerald Group Publishing Limited
dc.relation.ispartofAircraft Engineering and Aerospace Technology
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.subjectFilms (states of matter)
dc.subjectCooling
dc.subjectHeat Transfer
dc.titleInvestigation of film cooling effectiveness and heat transfer coefficient for rectangular holes with two rows
dc.typeArticle

Dosyalar

Koleksiyon

Makale Koleksiyonu
Scopus İndeksli Yayınlar Koleksiyonu
WoS İndeksli Yayınlar Koleksiyonu