Experimental study of the mean structure and quasi-conical scaling of a swept-compression-ramp interaction at Mach2

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dc.contributor.authorVanstone, Leon
dc.contributor.authorMusta, Mastafa Nail
dc.contributor.authorSeckin, Serdar
dc.contributor.authorClemens, Noel
dc.date.accessioned2024-02-23T14:16:32Z
dc.date.available2024-02-23T14:16:32Z
dc.date.issued2018
dc.departmentNEÜen_US
dc.description.abstractThis study investigates the mean flow structure of two shock-wave boundary-layer interactions generated by moderately swept compression ramps in a Mach 2 flow. The ramps have a compression angle of either 19 degrees or 22.5 degrees and a sweep angle of 30 degrees. The primary diagnostic methods used for this study are surface-streakline flow visualization and particle image velocimetry. The shock-wave boundary-layer interactions are shown to be quasi-conical, with the intermittent region, separation line and reattachment line all scaling in a self-similar manner outside of the inception region. This is one of the first studies to investigate the flow field of a swept ramp using particle image velocimetry, allowing more sensitive measurements of the velocity flow field than previously possible. It is observed that the streamwise velocity component outside of the separated flow reaches the quasi-conical state at the same time as the bulk surface flow features. However, the streamwise and cross-stream components within the separated flow take longer to recover to the quasi-conical state, which indicates that the inception region for these low-magnitude velocity components is actually larger than was previously assumed. Specific scaling laws reported previously in the literature are also investigated and the results of this study are shown to scale similarly to these related interactions. Certain limiting cases of the scaling laws are explored that have potential implications for the interpretation of cylindrical and quasi-conical scaling.en_US
dc.description.sponsorshipAFOSR [FA9550-14-1-0167]en_US
dc.description.sponsorshipThis work is sponsored by the AFOSR under grant FA9550-14-1-0167 with I. Leyva as the programme manager. This source of support is gratefully acknowledged.en_US
dc.identifier.doi10.1017/jfm.2018.8
dc.identifier.endpage27en_US
dc.identifier.issn0022-1120
dc.identifier.issn1469-7645
dc.identifier.scopus2-s2.0-85042178842en_US
dc.identifier.scopusqualityQ1en_US
dc.identifier.startpage1en_US
dc.identifier.urihttps://doi.org/10.1017/jfm.2018.8
dc.identifier.urihttps://hdl.handle.net/20.500.12452/12703
dc.identifier.volume841en_US
dc.identifier.wosWOS:000425493900001en_US
dc.identifier.wosqualityQ1en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherCambridge Univ Pressen_US
dc.relation.ispartofJournal Of Fluid Mechanicsen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectBoundary Layer Separationen_US
dc.subjectHigh-Speed Flowen_US
dc.subjectShock Wavesen_US
dc.titleExperimental study of the mean structure and quasi-conical scaling of a swept-compression-ramp interaction at Mach2en_US
dc.typeArticleen_US

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