Heat transfer augmentation by swirl generators inserted into a tube with constant heat flux

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dc.authorid0000-0002-3720-8353
dc.contributor.authorKurtbaş, İrfan
dc.contributor.authorGülçimen, Fevzi
dc.contributor.authorAkbulut, Abdullah
dc.contributor.authorBuran, Dinçer
dc.date.accessioned2019-05-13T08:57:42Z
dc.date.available2019-05-13T08:57:42Z
dc.date.issued2009
dc.departmentHitit Üniversitesi, Mühendislik Fakültesi, Makine Mühendisliği Bölümü
dc.description.abstractA novel conical injector type swirl generator (CITSG) is devised in this study. Performances of heat transfer and pressure drop in a pipe with the CITSG are experimentally examined for the CITSGs' angle (?) of 30°, 45° and 60° in Reynolds number (Re) range of 10,000–35,000. Moreover, circular holes with different numbers (N) and cross-section areas (Ah) are drilled on the CITSG. In this way, total areas (At = N · Ah) of the holes on the CITSG are equaled each other. Besides, flow directors having three different angles (? = 30°, 60° and 90°) to radial direction are attached to every one of the holes. This study is a typical example for decaying flow. All experiments were conduced with air accordingly; Prandtl number was approximately fixed at 0.71. The local Nusselt number (Nux), heat transfer enhancement ratio (NuER) and heat transfer performance ratio (NuPR) are calculated and discussed in this paper. It is found that the NuER decreases with increase in Reynolds number, the director angle (?), the director diameter (d), and with decrease in the CITSG angle (?). Likewise, variation of NuPR and NuER is also essentially similar for the same independent parameters.
dc.identifier.citationKurtbaş, İ., Gülçimen, F., Akbulut, A., Buran, D. (2009). Heat transfer augmentation by swirl generators inserted into a tube with constant heat flux. International Communications in Heat and Mass Transfer, 36(8), 865-871.
dc.identifier.doi10.1016/j.icheatmasstransfer.2009.04.011
dc.identifier.endpage871en_US
dc.identifier.issn0735-1933
dc.identifier.issue8en_US
dc.identifier.scopusqualityQ1
dc.identifier.startpage865en_US
dc.identifier.urihttps://doi.org/10.1016/j.icheatmasstransfer.2009.04.011
dc.identifier.urihttps://hdl.handle.net/11491/988
dc.identifier.volume36en_US
dc.identifier.wosqualityN/A
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.relation.ispartofInternational Communications in Heat and Mass Transfer
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.subjectDecaying Flowen_US
dc.subjectPipe Flowen_US
dc.subjectSwirl Generatoren_US
dc.subjectTurbulatoren_US
dc.titleHeat transfer augmentation by swirl generators inserted into a tube with constant heat flux
dc.typeArticle

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