Investigation of flow characteristics for triangular grooved shape cylinder at different heights in shallow water

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dc.authoridTantekin, Atakan/0000-0002-8200-5686
dc.authoridTUMEN OZDIL, N. Filiz/0000-0003-0083-7524
dc.contributor.authorCaliskan, Meltem
dc.contributor.authorTantekin, Atakan
dc.contributor.authorOzdil, N. Filiz Tumen
dc.contributor.authorAkilli, Huseyin
dc.date.accessioned2025-01-06T17:37:31Z
dc.date.available2025-01-06T17:37:31Z
dc.date.issued2021
dc.description.abstractThis study is an investigation and comparison of the flow characteristic around triangular grooved and bare cylinders, positioned horizontally in shallow water using Particle Image Velocimetry (PIV). Throughout the experiment, Reynolds number, Froude number and water height have been selected as 5000, 0.27 and 90 mm, respectively. To observe the effect of height (h) on the flow structure, cylinder is positioned at h: 0 mm, 15 mm, 22.5 mm, 30 mm, 37.5 mm, 45 mm, 52.5 mm and 60 mm. Moreover, grooved angle (a) has been changed from 0 degrees, 80 degrees, 85 degrees, 90 degrees and 95 degrees in shallow water to investigate the effect of grooved angle. The results show that the vortex forms vary according to the groove angle. It is seen that the vortex, the cylinders especially positioned at h: 0 mm and h: 60 mm, are affected owing to the surface and bottom effect. Furthermore, the largest Reynolds stress is observed at the h: 37.5 mm while the largest wake region is observed at the h: 52.5 mm. Also, the maximum Drag Coefficient (C-d) and Turbulence Kinetic Energy (TKE) are observed at h: 0 mm, a: 90 degrees for grooved cylinder and at h: 37.5 mm for bare cylinder, respectively.
dc.description.sponsorshipScientific and Technological Research Council of Turkey (TUB.ITAK) [118M794]
dc.description.sponsorshipThis study is supported by The Scientific and Technological Research Council of Turkey (TUB.ITAK) under project no: 118M794. It is gratefully acknowledged for the continuous incentive supports.
dc.identifier.doi10.1016/j.oceaneng.2021.108788
dc.identifier.issn0029-8018
dc.identifier.issn1873-5258
dc.identifier.scopus2-s2.0-85101811710
dc.identifier.scopusqualityQ1
dc.identifier.urihttps://doi.org/10.1016/j.oceaneng.2021.108788
dc.identifier.urihttps://hdl.handle.net/20.500.14669/2258
dc.identifier.volume225
dc.identifier.wosWOS:000631882800018
dc.identifier.wosqualityQ1
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherPergamon-Elsevier Science Ltd
dc.relation.ispartofOcean Engineering
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.snmzKA_20241211
dc.subjectDrag coefficient
dc.subjectGrooved cylinder
dc.subjectTurbulence kinetic energy
dc.subjectParticle image velocimetry
dc.subjectDye experiment
dc.titleInvestigation of flow characteristics for triangular grooved shape cylinder at different heights in shallow water
dc.typeArticle

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