Effect of corrugated channel phase shifts on flow structures and heat transfer rate

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dc.authoridTOKGOZ, NEHIR/0000-0001-9264-9971
dc.authoridSahin, Besir/0000-0003-0671-0890
dc.authoridTunay, Tural/0000-0001-5994-4565
dc.contributor.authorTokgoz, Nehir
dc.contributor.authorTunay, Tural
dc.contributor.authorSahin, Besir
dc.date.accessioned2025-01-06T17:37:13Z
dc.date.available2025-01-06T17:37:13Z
dc.date.issued2018
dc.description.abstractThe study of quantitative visualization of flow hydrodynamics, turbulent flow characteristics and time-dependent development and disappearance of vortices in cavities of corrugated channel regarding enhancements of heat transfer is limited in the literature. For this reason, the aim of the work is to search the effects of two different phase shifts, phi (i.e. 90 degrees, 0 degrees) of corrugated channels on flow hydrodynamics and the rate of heat transfer for Reynolds numbers varying from 3 x 10(3) to 6 x 10(3). The technique of particle image velocimetry (PIV) which has the capability of observing turbulent unsteady flows and provide instantaneous velocity vectors covering defined flow fields were employed. An effective fluid mixture occurs between the core and the separated flow regions due to the occurrence of a rapid vortex shedding downstream of the entrance of cavities. Along the lower and upper sides of hollow spaces, these shedding vortices spin either counterclockwise or clockwise to stimulate entrainment. In addition, the effects of turbulent flow hydrodynamics on convective heat transfer were also investigated numerically. Numerical results of flow hydrodynamic were found to be consistent with the experimental results. Heat transfer augmentation was reported as a conclusion of different parameters including different phase shifts, phi, aspect ratios, s/H and Reynolds numbers, Re.
dc.description.sponsorshipResearch Projects Office of Cukurova University [MMF 2012D17]
dc.description.sponsorshipThe authors would like to acknowledge the funding of the Research Projects Office of Cukurova University under contract No: MMF 2012D17.
dc.identifier.doi10.1016/j.expthermflusci.2018.08.011
dc.identifier.endpage391
dc.identifier.issn0894-1777
dc.identifier.issn1879-2286
dc.identifier.scopus2-s2.0-85051666048
dc.identifier.scopusqualityQ1
dc.identifier.startpage374
dc.identifier.urihttps://doi.org/10.1016/j.expthermflusci.2018.08.011
dc.identifier.urihttps://hdl.handle.net/20.500.14669/2148
dc.identifier.volume99
dc.identifier.wosWOS:000446146600034
dc.identifier.wosqualityQ1
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherElsevier Science Inc
dc.relation.ispartofExperimental Thermal and Fluid Science
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.snmzKA_20241211
dc.subjectCorrugated channels
dc.subjectHeat transfer
dc.subjectPIV
dc.subjectTurbulent flow
dc.titleEffect of corrugated channel phase shifts on flow structures and heat transfer rate
dc.typeArticle

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