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dc.contributor.authorDeepwell, David
dc.contributor.authorStastna, Marek
dc.contributor.authorCarr, Magda
dc.contributor.authorDavies, Peter A.
dc.date.accessioned2017-08-08T14:30:12Z
dc.date.available2017-08-08T14:30:12Z
dc.date.issued2017-07-31
dc.identifier.citationDeepwell , D , Stastna , M , Carr , M & Davies , P A 2017 , ' Interaction of a mode-2 internal solitary wave with narrow isolated topography ' , Physics of Fluids , vol. 29 , no. 7 , 076601 , pp. 1-13 . https://doi.org/10.1063/1.4994590en
dc.identifier.issn1070-6631
dc.identifier.otherPURE: 250429365
dc.identifier.otherPURE UUID: 8644ee13-2e91-4d85-8628-ea1557fd1f51
dc.identifier.otherScopus: 85027253037
dc.identifier.otherWOS: 000406765200037
dc.identifier.urihttps://hdl.handle.net/10023/11406
dc.descriptionThis research was supported by the Natural Sciences and Engineering Research Council of Canada through a Discovery Grant (MS), and the Government of Ontario through a Queen Elizabeth II Graduate Scholarship in Science and Technology (DD). The experimental work was conducted at The University of Dundee by DD and MC with the aid of grants provided by The University of Dundee, the University of St Andrews, and the University of Waterloo.en
dc.description.abstractNumerical and experimental studies of the transit of a mode-2 internal solitary wave over an isolated ridge are presented. All studies used a quasi-two-layer fluid with a pycnocline centred at the mid-depth. The wave amplitude and total fluid depth were both varied, while the topography remained fixed. The strength of the interaction between the internal solitary waves and the hill was found to be characterized by three regimes: weak, moderate, and strong interactions. The weak interaction exhibited negligible wave modulation and bottom surface stress. The moderate interaction generated weak and persistent vorticity in the lower layer, in addition to negligible wave modulation. The strong interaction clearly showed material from the trapped core of the mode-2 wave extracted in the form of a thin filament while generating a strong vortex at the hill. A criterion for the strength of the interaction was found by non-dimensionalizing the wave amplitude by the lower layer depth, a/ℓ. A passive tracer was used to measure the conditions for resuspension of boundary material due to the interaction. The speed and prevalence of cross boundary layer transport increased with a/ℓ.
dc.format.extent13
dc.language.isoeng
dc.relation.ispartofPhysics of Fluidsen
dc.rights© 2017, the Author(s). This work has been made available online in accordance with the publisher’s policies. This is the author created, accepted version manuscript following peer review and may differ slightly from the final published version. The final published version of this work is available at https://doi.org/10.1063/1.4994590en
dc.subjectQA Mathematicsen
dc.subjectQC Physicsen
dc.subjectDASen
dc.subjectBDCen
dc.subjectR2Cen
dc.subject.lccQAen
dc.subject.lccQCen
dc.titleInteraction of a mode-2 internal solitary wave with narrow isolated topographyen
dc.typeJournal articleen
dc.description.versionPostprinten
dc.contributor.institutionUniversity of St Andrews. Applied Mathematicsen
dc.contributor.institutionUniversity of St Andrews. Scottish Oceans Instituteen
dc.identifier.doihttps://doi.org/10.1063/1.4994590
dc.description.statusPeer revieweden
dc.date.embargoedUntil2017-07-31


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