EFFECTIVE FLOW CONTROL AROUND A CIRCULAR CYLINDER BY USING BOTH A SPLITTER PLATE AND PLASMA ACTUATORS AS PASSIVE AND ACTIVE CONTROL METHODS

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dc.contributor.authorAkbiyik, Hurrem
dc.contributor.authorAkansu, Yahya Erkan
dc.date.accessioned2024-11-07T13:31:54Z
dc.date.available2024-11-07T13:31:54Z
dc.date.issued2021
dc.departmentNiğde Ömer Halisdemir Üniversitesi
dc.description.abstractIn this study, passive and active flow control methods were used together to manipulate the flow around a circular cylinder. The experiments were conducted in a wind tunnel for the Reynolds number range of 4000 and 10000 based on the diameter of the circular cylinder (D). A splitter plate was used as passive flow control device and its length was chosen to be about 3.75D. Plasma actuators were placed on the circular cylinder at a position of +/- 90 degrees as an active flow control device. Combining the active and passive flow control methods, a greater reduction of the drag coefficient was achieved compared to that of the cases when using these methods separately. For Reynolds numbers of 5000 and 10000, the hybrid method gives a reduction in drag of 48% and 45%, respectively. The velocity measurements were carried out by using the hot-wire anemometry and velocity profiles were obtained in the wake region. The flow was visualized by using a smoke wire method. The results revealed that the wake region of the circular cylinder with plasma actuator and splitter plate has a narrower width than the plain cylinder and with splitter plate. Also, it can be seen from spectral analysis that the vortex shedding frequency was suppressed significantly by usage of the hybrid flow control method was used.
dc.description.sponsorshipScientific and Technological Research Council of Turkey (TUBITAK) [110M056]
dc.description.sponsorshipThe authors would like to acknowledge the financial support of this work by the Scientific and Technological Research Council of Turkey (TUBITAK) under the Contract Number of 110M056. The authors also thank the rest of the project team and Prof. Dr. Hakan YAVUZ for their assistance in the performing of the study.
dc.identifier.doi10.47480/isibted.979377
dc.identifier.endpage140
dc.identifier.issn1300-3615
dc.identifier.issue1
dc.identifier.scopus2-s2.0-85164302719
dc.identifier.scopusqualityQ4
dc.identifier.startpage133
dc.identifier.trdizinid511284
dc.identifier.urihttps://doi.org/10.47480/isibted.979377
dc.identifier.urihttps://search.trdizin.gov.tr/tr/yayin/detay/511284
dc.identifier.urihttps://hdl.handle.net/11480/15117
dc.identifier.volume41
dc.identifier.wosWOS:000685650300011
dc.identifier.wosqualityQ4
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.indekslendigikaynakTR-Dizin
dc.language.isoen
dc.publisherTurkish Soc Thermal Sciences Technology
dc.relation.ispartofIsi Bilimi Ve Teknigi Dergisi-Journal of Thermal Science and Technology
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/openAccess
dc.snmzKA_20241106
dc.subjectCircular cylinder
dc.subjectPlasma actuator
dc.subjectSplitter plate
dc.subjectHybrid flow control
dc.subjectVortex shedding frequency
dc.titleEFFECTIVE FLOW CONTROL AROUND A CIRCULAR CYLINDER BY USING BOTH A SPLITTER PLATE AND PLASMA ACTUATORS AS PASSIVE AND ACTIVE CONTROL METHODS
dc.title.alternativePASİF VE AKTİF KONTROL YÖNTEMLERİ OLARAK HEM BİR AYIRICI PLAKA HEMDE PLAZMA AKTÜATÖRLER KULLANILMASIYLA DAİRESEL BİR SİLİNDİR ETRAFINDA ETKİLİ AKIŞ KONTROLÜNÜN SAĞLANMASI
dc.typeArticle

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