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dc.contributor.authorDurmuş, Gökhan
dc.contributor.authorKavsaoğlu, Mehmet Şerif
dc.contributor.authorKaynak, Ünver
dc.date.accessioned2019-10-20T19:32:22Z
dc.date.available2019-10-20T19:32:22Z
dc.date.issued2011
dc.identifier.issn0954-4100
dc.identifier.urihttps://dx.doi.org/10.1177/2041302510393000
dc.identifier.urihttps://hdl.handle.net/11421/18450
dc.descriptionWOS: 000291955000007en_US
dc.description.abstractUnsteady compressible flow solutions around a sharp-edged rectangular flat wing of an aspect ratio of 1.0 are obtained using a parallel Reynolds-averaged Navier-Stokes algorithm. The simulated cases are obtained for Mach numbers of 0.42-0.87 and Reynolds numbers of the order of 200 000-300 000 in the transitional flow regime up to an angle of attack of 15 degrees. A Degani-Schiff modification for the Baldwin-Lomax turbulence model is used to distinguish between the boundary layers and the primary and secondary vortices over the flat plate. Unsteady vortex shedding frequencies and Strouhal number variation with the angle of attack are obtained by using the fast Fourier transform. The flow around the low-aspect-ratio rectangular flat wing is strongly dominated by the leading- and side-edge vortices and flow separations. The numerical results are compared with the prior experimental data acquired at the von Karman Institute that shows a mix of laminar/transitional flow. In the simulations, top surface pressures of the rectangular flat wing are well predicted except in the leading-edge region. Time-mean averaged surface flow topologies are also found to be in good agreement with the experiment. Complex flow structures, including the primary and secondary separation bubbles and the footprints of the primary and secondary vortex cores, are well captured through the use of the modified algebraic turbulence model.en_US
dc.language.isoengen_US
dc.publisherProfessional Engineering Publishing LTDen_US
dc.relation.isversionof10.1177/2041302510393000en_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectComputational Fluid Dynamicsen_US
dc.subjectUnsteady Flowsen_US
dc.subjectVortical Flowsen_US
dc.subjectFlow Separationen_US
dc.subjectLow-Aspect-Ratio Wingsen_US
dc.titleUnsteady compressible flow simulation around low-aspect-ratio rectangular flat wingsen_US
dc.typearticleen_US
dc.relation.journalProceedings of the Institution of Mechanical Engineers Part G-Journal of Aerospace Engineeringen_US
dc.contributor.departmentAnadolu Üniversitesi, Havacılık ve Uzay Bilimleri Fakültesien_US
dc.identifier.volume225en_US
dc.identifier.issueG6en_US
dc.identifier.startpage675en_US
dc.identifier.endpage687en_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US]
dc.contributor.institutionauthorKavsaoğlu, Mehmet Şerif


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