Experimental study on passive flow control of circular cylinder via perforated splitter plate

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dc.contributor.authorSahin, Serdar
dc.contributor.authorDurhasan, Tahir
dc.contributor.authorPinar, Engin
dc.contributor.authorAkilli, Huseyin
dc.date.accessioned2025-01-06T17:30:13Z
dc.date.available2025-01-06T17:30:13Z
dc.date.issued2021
dc.description.abstractPresent experimental investigation aims to reduce the shedding of vortex in the near wake region of a circular cylinder using a perforated splitter plate. Perforated plates were placed in the wake region of the cylinder and aligned with the streamwise direction. The length of the plates was equal to the diameter of the cylinder. Different plate porosities and locations were examined and obtained results were compared to the baseline cylinder. Flow measurements downstream of the cylinder were performed in a water channel by employing a particle image velocimetry technique (PIV) at a Reynolds number of Re=5×103. It is observed that the effect of the porosity on the flow characteristics of the cylinder depends on the location of the plate. The strength of shear layers and flow fluctuations in the near wake region of the cylinder are considerably diminished by the perforated splitter plate. It is found that the porosity of ?=0.3 is the most effective control element for gap ratio of G/D=0.5. On the other hand, proper gap ratio is determined as G/D=2 for porosity of ?=0.7. It is concluded in the present study that the perforated splitter plate could be used as alternative passive flow control technique in order to reduce vortex shedding of the cylinder. Copyright © 2021 Techno-Press, Ltd.
dc.identifier.doi10.12989/was.2021.32.6.613
dc.identifier.endpage621
dc.identifier.issn1226-6116
dc.identifier.issue6
dc.identifier.scopus2-s2.0-85113717250
dc.identifier.scopusqualityQ2
dc.identifier.startpage613
dc.identifier.urihttps://doi.org/10.12989/was.2021.32.6.613
dc.identifier.urihttps://hdl.handle.net/20.500.14669/1527
dc.identifier.volume32
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherTechno-Press
dc.relation.ispartofWind and Structures, An International Journal
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.snmzKA_20241211
dc.subjectCircular cylinder
dc.subjectPassive flow control
dc.subjectPerforated splitter plate
dc.subjectVortex shedding reduction
dc.titleExperimental study on passive flow control of circular cylinder via perforated splitter plate
dc.typeArticle

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