Effects of sinusoidal turbulator in cylindrical channel on heat transfer and flow characteristics

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dc.contributor.authorAltun, Aziz Hakan
dc.contributor.authorGurdal, Mehmet
dc.contributor.authorBerber, Adnan
dc.date.accessioned2024-02-23T14:49:19Z
dc.date.available2024-02-23T14:49:19Z
dc.date.issued2020
dc.departmentNEÜen_US
dc.description.abstractEffects of heat transfer and flow characteristics on Reynolds numbers of different sinusoidal turbulators placed separately from a pipe in the turbulent flow were investigated experimentally. The experiments were carried out under forced flow and constant heat flow conditions. The elements, which drew a sine curve used as a turbulator, were positioned axially to the channel centre. The experiments were repeated for 3 width values of sinusoidal turbulators that correspond to 3D/4, D/2 and D/4 (D = inner diameter of test pipe). The experiments showed that although there were increases in the rate of heat transfer with the turbulator, they caused considerable pressure drop. As a result, as the width of the turbulator increased, the heat transfer ratio (the Nusselt number) and coefficient of friction increased. Increase in Nusselt number was about 39-86% at D/4 width, 70-119% at D/2 width and 72-170% at 3D/4 width. It was observed that the coefficient of friction was significantly affected by the width of the sinusoidal turbulator, being about 0.02 in the case of straight pipe, 0.184 - 0.242 at D/4 width, 0.345 - 0.415 at D/2 width, and 0.416 - 0.451 at 3D/4 width. In addition, increasing coefficient of friction increased pressure drop and power required for pumping.en_US
dc.identifier.endpage42en_US
dc.identifier.issn1905-7873
dc.identifier.issue1en_US
dc.identifier.scopus2-s2.0-85081921359en_US
dc.identifier.scopusqualityQ3en_US
dc.identifier.startpage27en_US
dc.identifier.urihttps://hdl.handle.net/20.500.12452/18123
dc.identifier.volume14en_US
dc.identifier.wosWOS:000575812300004en_US
dc.identifier.wosqualityQ4en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherMaejo Univen_US
dc.relation.ispartofMaejo International Journal Of Science And Technologyen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectTurbulent Flow In Pipeen_US
dc.subjectHeat Transfer Enhancementen_US
dc.subjectSinusoidal Turbulatoren_US
dc.subjectPressure Drop And Friction In Pipeen_US
dc.titleEffects of sinusoidal turbulator in cylindrical channel on heat transfer and flow characteristicsen_US
dc.typeArticleen_US

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