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dc.contributor.authorStrandenes, Håkon
dc.contributor.authorJiang, Fengjian
dc.contributor.authorPettersen, Bjørnar
dc.contributor.authorAndersson, Helge Ingolf
dc.date.accessioned2019-03-14T13:09:42Z
dc.date.available2019-03-14T13:09:42Z
dc.date.created2019-02-08T15:09:32Z
dc.date.issued2019
dc.identifier.citationAIAA Journal. 2019, 1-9.nb_NO
dc.identifier.issn0001-1452
dc.identifier.urihttp://hdl.handle.net/11250/2590059
dc.description.abstractThe flow around a 6:1 prolate spheroid at 45 deg inclination angle and Reynolds number 4000 (based on the minor axis) is described. Despite the fact that the inflow is uniform and steady, the resulting wake is highly asymmetric and unsteady. Two main vortical structures develop from the shear layers of the spheroid, with one being significantly stronger than the other. This asymmetry results in a nonzero side force. The forces acting on the spheroid change dramatically from earlier works at Reynolds number 3000. The pressure inside the vortex cores also change with this moderate increase in Reynolds number. This indicates that the flow is highly transitional. It is also documented that, close to the body, on the side of the weaker vortex, there is a region of negative axial velocity. In this backflow region, fluid enters from behind the spheroid and travels forward against the inflow and then exits the backflow region through one of the main vortical structures. This backflow has not been described before. A distinct Kelvin–Helmholtz shear-layer instability close to this region is also observed and described.nb_NO
dc.language.isoengnb_NO
dc.publisherAmerican Institute of Aeronautics and Astronauticsnb_NO
dc.relation.urihttps://arc.aiaa.org/doi/full/10.2514/1.J057615
dc.titleNear-Wake of an Inclined 6:1 Spheroid at Reynolds Number 4000nb_NO
dc.typeJournal articlenb_NO
dc.typePeer reviewednb_NO
dc.description.versionacceptedVersionnb_NO
dc.source.pagenumber1-9nb_NO
dc.source.journalAIAA Journalnb_NO
dc.identifier.doihttps://arc.aiaa.org/doi/full/10.2514/1.J057615
dc.identifier.cristin1674990
dc.relation.projectNotur/NorStore: nn9191knb_NO
dc.description.localcodeCopyright © 2019 by the American Institute of Aeronautics and Astronautics, Inc. All rights reserved. This is the authors' accepted and refereed manuscript to the article. The final authenticated version is available online at: https://doi.org/10.2514/1.J057615nb_NO
cristin.unitcode194,64,20,0
cristin.unitcode194,64,25,0
cristin.unitnameInstitutt for marin teknikk
cristin.unitnameInstitutt for energi- og prosessteknikk
cristin.ispublishedtrue
cristin.fulltextpostprint
cristin.qualitycode2


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