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dc.contributor.authorRabin, SMEen
dc.contributor.authorCaulfield, Colm-cilleen
dc.contributor.authorKerswell, Richarden
dc.date.accessioned2014-01-30T16:38:23Z
dc.date.available2014-01-30T16:38:23Z
dc.date.issued2013-12-04en
dc.identifier.issn0022-1120
dc.identifier.urihttps://www.repository.cam.ac.uk/handle/1810/245132
dc.description.abstractWe show how a fully nonlinear variational method can be used to design a more nonlinearly stable laminar shear flow by quantifying the effect of manipulating the boundary conditions of the flow. Using the example of plane Couette flow, we demonstrate that by forcing the boundaries to undergo spanwise oscillations in a certain way, it is possible to increase the critical disturbance energy for the onset of turbulence by 41 %. If this is sufficient to ensure laminar flow (i.e. ambient noise does not exceed this increased threshold), nearly four times less energy is consumed than in the turbulent flow which exists in the absence of imposed spanwise oscillations.
dc.description.sponsorshipThis work is supported by the Engineering and Physical Sciences Research Council [grant number EP/H050310/1].
dc.languageEnglishen
dc.language.isoenen
dc.publisherCambridge University Press
dc.subjectnonlinear instabilityen
dc.subjecttransition to turbulenceen
dc.subjectvariational methodsen
dc.titleDesigning a more nonlinearly stable laminar flow via boundary manipulationen
dc.typeArticle
dc.description.versionThis is the author accepted manuscript. The final version is available from Cambridge University Press via https://doi.org/10.1017/jfm.2013.601en
prism.numberR1en
prism.publicationDate2013en
prism.publicationNameJournal of Fluid Mechanicsen
prism.volume738en
dc.rioxxterms.funderEPSRC
dc.rioxxterms.projectidEP/H050310/1
rioxxterms.versionofrecord10.1017/jfm.2013.601en
rioxxterms.licenseref.urihttp://www.rioxx.net/licenses/all-rights-reserveden
rioxxterms.licenseref.startdate2013-12-04en
dc.contributor.orcidCaulfield, Colm-cille [0000-0002-3170-9480]
dc.contributor.orcidKerswell, Richard [0000-0001-5460-5337]
dc.identifier.eissn1469-7645
rioxxterms.typeJournal Article/Reviewen
pubs.funder-project-idEPSRC (EP/H050310/1)


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