DC FieldValueLanguage
dc.contributorDepartment of Aeronautical and Aviation Engineeringen_US
dc.contributorDepartment of Mechanical Engineeringen_US
dc.creatorHao, Jen_US
dc.creatorCao, Sen_US
dc.creatorWen, CYen_US
dc.creatorOlivier, Hen_US
dc.date.accessioned2021-08-04T01:52:01Z-
dc.date.available2021-08-04T01:52:01Z-
dc.identifier.issn0022-1120en_US
dc.identifier.urihttp://hdl.handle.net/10397/90595-
dc.language.isoenen_US
dc.publisherCambridge University Pressen_US
dc.subjectAbsolute/convective instabilityen_US
dc.subjectHypersonic flowen_US
dc.subjectKey words boundary layer separationen_US
dc.titleOccurrence of global instability in hypersonic compression corner flowen_US
dc.typeJournal/Magazine Articleen_US
dc.identifier.volume919en_US
dc.identifier.doi10.1017/jfm.2021.372en_US
dcterms.abstractHypersonic flow over a two-dimensional compression corner with a Mach number of 7.7 and unit Reynolds number of 4.2 × 10⁶ m⁻¹ is numerically investigated. Special emphasis is given to the onset of global instability with respect to three-dimensional perturbations. Global stability analysis is performed for various ramp angles and wall temperatures. It is found that the shock-induced separated flow system becomes unstable when the ramp angle is beyond a certain value. The critical ramp angle increases slightly with the wall temperature, although the length of the separation region is significantly enlarged. The global instability is shown to be closely linked with the occurrence of secondary separation beneath the primary separation bubble. A criterion is established based on a scaled ramp angle defined in the triple-deck theory to predict the global stability boundary, which depends on the free-stream conditions and geometries only.en_US
dcterms.accessRightsembargoed accessen_US
dcterms.bibliographicCitationJournal of fluid mechanics, 25 July 2021, v. 919, A4en_US
dcterms.isPartOfJournal of fluid mechanicsen_US
dcterms.issued2021-07-25-
dc.identifier.scopus2-s2.0-85106476007-
dc.identifier.eissn1469-7645en_US
dc.identifier.artnA4en_US
dc.description.validate202108 bcvcen_US
dc.description.oaNot applicableen_US
dc.identifier.FolderNumbera0985-n01-
dc.identifier.SubFormID2326-
dc.description.fundingSourceRGCen_US
dc.description.fundingText15206519en_US
dc.description.pubStatusPublisheden_US
dc.date.embargo2022.01.25en_US
Appears in Collections:Journal/Magazine Article
Access
View full-text via PolyU eLinks SFX Query
Show simple item record

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.