QUANTITATIVE FLOW CHARACTERISTICS FOR SIDE-BY-SIDE SQUARE CYLINDERS VIA PIV

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dc.contributor.authorOzgoren, Muammer
dc.contributor.authorDogan, Sercan
dc.date.accessioned2020-03-26T18:31:09Z
dc.date.available2020-03-26T18:31:09Z
dc.date.issued2012
dc.departmentSelçuk Üniversitesien_US
dc.descriptionConference on Experimental Fluid Mechanics (EFM) -- NOV 22-25, 2011 -- Jicin, CZECH REPUBLICen_US
dc.description.abstractIn this study, instantaneous and time-averaged flow structures downstream of the sharp-edged single and two and three side-by-side square cylinders (SCs) immersed in a uniform open channel water flow were studied by a technique of particle image velocimetry (PIV). Experimental results of wake flow structures were presented for gap ratios (G/D) in the range of 1.0 <= G/D <= 3.0 for Reynolds number values of 1050, 2450 and 3400. Flow structures depending on the square cylinder (SC) configurations and Reynolds number were discussed. It has been found that the development of the vortex shedding as well as the flow structure were substantially altered for side-by-side SCs comparing to the single SC. Asymmetrical and biased wake structures were observed because of the jet-like flow between the SCs for two SCs cases for the gap ratio less than 2.0. Depending on the gap spacing between the SCs, the interaction results of time-averaged vorticity, velocity vector field, Reynolds stress correlations < u'v'/U-infinity(2) > and streamline patterns in the wake region form a distinguished flow structure. Strouhal numbers for the single square cylinder for 1050 <= Re <= 3400 are found in the range of 0.12-0.13. The present results have supported the previous works by providing detailed quantitative experimental information with PIV in the wake region of the SC and might be helpful for validation of numerical studies and designers.en_US
dc.description.sponsorshipDantec Dynamics GmbH, Nykryn CZ, Honeywell, spol, Metrostav, Telemeter Elect, TOPTEC/IPP CAS, TSI GmbH, Warmnis spol s r oen_US
dc.identifier.doi10.1051/epjconf/20122501064en_US
dc.identifier.issn2100-014Xen_US
dc.identifier.scopusqualityN/Aen_US
dc.identifier.urihttps://dx.doi.org/10.1051/epjconf/20122501064
dc.identifier.urihttps://hdl.handle.net/20.500.12395/28349
dc.identifier.volume25en_US
dc.identifier.wosWOS:000304449600064en_US
dc.identifier.wosqualityN/Aen_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherE D P SCIENCESen_US
dc.relation.ispartofEFM11 - EXPERIMENTAL FLUID MECHANICS 2011en_US
dc.relation.ispartofseriesEPJ Web of Conferences
dc.relation.publicationcategoryKonferans Öğesi - Uluslararası - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.selcuk20240510_oaigen_US
dc.subjectCoupled vortexen_US
dc.subjectinstabilityen_US
dc.subjectPIVen_US
dc.subjectside-by-side square cylindersen_US
dc.subjectStrouhal numbersen_US
dc.subjectvortex sheddingen_US
dc.subjectwake flowen_US
dc.subjectturbulenceen_US
dc.titleQUANTITATIVE FLOW CHARACTERISTICS FOR SIDE-BY-SIDE SQUARE CYLINDERS VIA PIVen_US
dc.typeConference Objecten_US

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