PIV measurements on the passive control of flow past a circular cylinder

Basit Öğe Kaydı
dc.authorid0000-0001-9055-1508en_US
dc.contributor.authorOruç, Vedat
dc.contributor.authorAkıllı, Hüseyin
dc.contributor.authorŞahin, Beşir
dc.date.accessioned2024-02-22T06:19:36Z
dc.date.available2024-02-22T06:19:36Z
dc.date.issued2016en_US
dc.departmentDicle Üniversitesi, Mühendislik Fakültesi, Makine Mühendisliği Bölümüen_US
dc.description.abstractThe passive control of water flow downstream of a circular cylinder with 50 mm diameter is experimentally investigated in this study using particle image velocimetry (PIV) technique. The experiments were carried out for three different Reynolds number (based on cylinder diameter) values of 3350, 6850 and 10,200. The flow structure was substantially vortical with large-scale downstream of the bare cylinder due to strong interactions of the shear layers separating from the cylinder surface. For the passive controlling of flow, a drop-shaped mesh surrounding the cylinder was used to suppress the formation of Karman vortex street in the wake region of the cylinder. Time averaged flow structures such as velocity distribution, vorticity, streamline topology, Reynolds shear stress and turbulent kinetic energy were referred for interpreting the experimental results. The spectral analysis of the measured velocity data was also performed to have information about the vortex shedding frequency of the unsteady flow in the cylinder wake. It was confirmed that flow was successfully controlled by paying attention to the absence of large-scale vortical flow structure (although small-scale vortices, which were not strong compared to the former one, were still present in the shear layers) as well as elongation in vorticity layers, attenuation in both Reynolds shear stress and turbulent kinetic energy distributions related to the fluctuating velocity components measured in the wake region.en_US
dc.identifier.citationOruç, V., Akıllı, H. ve Şahin, B. (2016). PIV measurements on the passive control of flow past a circular cylinder. Experimental Thermal and Fluid Science, 70, 283-291.en_US
dc.identifier.doi10.1016/j.expthermflusci.2015.09.019
dc.identifier.endpage291en_US
dc.identifier.issn0894-1777
dc.identifier.scopus2-s2.0-84943425757
dc.identifier.scopusqualityQ1
dc.identifier.startpage283en_US
dc.identifier.urihttps://www.sciencedirect.com/science/article/pii/S0894177715002563
dc.identifier.urihttps://hdl.handle.net/11468/13353
dc.identifier.volume70en_US
dc.identifier.wosWOS:000365361900027
dc.identifier.wosqualityQ1
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.institutionauthorOruç, Vedat
dc.language.isoenen_US
dc.publisherElsevieren_US
dc.relation.ispartofExperimental Thermal and Fluid Science
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/restrictedAccessen_US
dc.subjectFlow–structureinteractionsen_US
dc.subjectPassivecontrolen_US
dc.subjectPIVen_US
dc.subjectFlowpastcylinderen_US
dc.titlePIV measurements on the passive control of flow past a circular cylinderen_US
dc.titlePIV measurements on the passive control of flow past a circular cylinder
dc.typeArticleen_US

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