Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/155671
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dc.contributor.authorCheawchan, Atcha-ueaen_US
dc.contributor.authorWen, Yimingen_US
dc.contributor.authorTeo, Zhen Weien_US
dc.contributor.authorNg, Bing Fengen_US
dc.contributor.authorNew, Tze Howen_US
dc.date.accessioned2022-03-15T08:21:00Z-
dc.date.available2022-03-15T08:21:00Z-
dc.date.issued2021-
dc.identifier.citationCheawchan, A., Wen, Y., Teo, Z. W., Ng, B. F. & New, T. H. (2021). Flow behavior of skewed vortex generators on a backward-facing ramp. Proceedings of the Institution of Mechanical Engineers, Part G: Journal of Aerospace Engineering, 235(15), 2299-2314. https://dx.doi.org/10.1177/0954410021996181en_US
dc.identifier.issn0954-4100en_US
dc.identifier.urihttps://hdl.handle.net/10356/155671-
dc.description.abstractThe impact of skewness angle on the effectiveness of vortex generators (VGs) and the behavior of streamwise vortices on flow separation behind a backward-facing ramp (BFR) with a sharp transition were experimentally investigated using surface oil flow visualizations, planar and stereoscopic particle image velocimetry measurements. Counter/corotating streamwise vortices were generated by a set of boundary layer-type rectangular VG located upstream of the BFR that comprised a flat- and 30-inclined sections with different skewness angles of 10°, 20°, and 30°. Local Reynolds number based on the VG location was Rex ≈ 3 × 106. Results show that the reattachment length was reduced by ∼45% when the VG was located five times its height ahead of the transition. Additionally, the behavior of the vortex core generated by the left vane displayed strong dependence on the skewness angle, whereby its vorticity magnitude and vortex instability increase with the skewness angle. Circulation magnitude and vortex radius of the left vortex core are also observed to be physically larger and less stable. In contrast, the vortex core produced by the right vane displays opposite behavior as the skewness angle increases. Lastly, the vortex core location is observed to fluctuate more in the vertical direction than horizontal direction.en_US
dc.language.isoenen_US
dc.relation.ispartofProceedings of the Institution of Mechanical Engineers, Part G: Journal of Aerospace Engineeringen_US
dc.rights© 2021 IMechE. All rights reserved. This paper was published by SAGE Publishing in Proceedings of the Institution of Mechanical Engineers, Part G: Journal of Aerospace Engineering and is made available with permission of IMechE.en_US
dc.subjectEngineering::Mechanical engineeringen_US
dc.titleFlow behavior of skewed vortex generators on a backward-facing rampen_US
dc.typeJournal Articleen
dc.contributor.schoolSchool of Mechanical and Aerospace Engineeringen_US
dc.identifier.doi10.1177/0954410021996181-
dc.description.versionSubmitted/Accepted versionen_US
dc.identifier.scopus2-s2.0-85102420695-
dc.identifier.issue15en_US
dc.identifier.volume235en_US
dc.identifier.spage2299en_US
dc.identifier.epage2314en_US
dc.subject.keywordsFlow Controlen_US
dc.subject.keywordsVortex Generatoren_US
dc.description.acknowledgementThe research was supported by the Leonardo Company.en_US
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