Control of flow around a square prism by slot jet injection from the rear surface

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dc.contributor.authorAkansu, Yahya Erkan
dc.contributor.authorFirat, Erhan
dc.date.accessioned2019-08-01T13:38:39Z
dc.date.available2019-08-01T13:38:39Z
dc.date.issued2010
dc.departmentNiğde ÖHÜ
dc.description.abstractThe flow around a square prism with slot jet injection from its base into the vortex formation region has been investigated experimentally for Reynolds number of 8000. For various injection rates, the mean and fluctuating pressure distributions on the square prism were measured and the velocity measurements were carried out by using a hot-wire anemometer. Flow visualization was performed by using the smoke-wire method. It was found that the slot jet injection has a substantial influence on the flow characteristics of the square prism. Increase of the injection ratio up to a certain value causes an important pressure recovery in the wake. For this lower range of blowing rates, blowing fluid tends to fill the wake region around the prism and extend it but the jet does not have enough momentum to penetrate the main vortices. By the further increasing of the blowing rate, the slot jet injection from the base side of the prism splits the near wake like a splitter plate. This causes a thinner wake width and weak vortices resulting in a higher vortex shedding frequency. (C) 2010 Elsevier Inc. All rights reserved.
dc.description.sponsorshipScientific and Technological Research Council of Turkey (TUBITAK) [105M241]
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 105M241.
dc.identifier.doi10.1016/j.expthermflusci.2010.02.007
dc.identifier.endpage914
dc.identifier.issn0894-1777
dc.identifier.issue7
dc.identifier.scopus2-s2.0-77955982861
dc.identifier.scopusqualityQ1
dc.identifier.startpage906
dc.identifier.urihttps://dx.doi.org/10.1016/j.expthermflusci.2010.02.007
dc.identifier.urihttps://hdl.handle.net/11480/4837
dc.identifier.volume34
dc.identifier.wosWOS:000278510700010
dc.identifier.wosqualityQ1
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.institutionauthor[0-Belirlenecek]
dc.language.isoen
dc.publisherELSEVIER SCIENCE INC
dc.relation.ispartofEXPERIMENTAL THERMAL AND FLUID SCIENCE
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.subjectSquare prism
dc.subjectBlowing
dc.subjectFlow control
dc.subjectSlot jet injection
dc.subjectVortex shedding
dc.subjectPressure coefficient
dc.titleControl of flow around a square prism by slot jet injection from the rear surface
dc.typeArticle

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