Show simple item record

dc.contributor.authorSabnis, Kshitijen
dc.contributor.authorSpalart, Philippeen
dc.contributor.authorGalbraith, Danielen
dc.contributor.authorBabinsky, Holgeren
dc.contributor.authorBenek, Johnen
dc.date.accessioned2021-04-22T23:30:23Z
dc.date.available2021-04-22T23:30:23Z
dc.identifier.issn0001-9240
dc.identifier.urihttps://www.repository.cam.ac.uk/handle/1810/321473
dc.description.abstractThe quadratic constitutive relation was proposed as an extension of minimal complexity to linear eddy-viscosity models in order to improve mean flow predictions by better estimating turbulent stress distributions. However, the successes of this modification have been relatively modest and are limited to improved calculations of flow along streamwise corners, which are influenced by weak secondary vortices. This paper revisits the quadratic constitutive relation in an attempt to explain its capabilities and deficiencies. The success in streamwise corner flows cannot be entirely explained by significant improvements in turbulent stress estimates in general, but is instead due to better prediction of the particular turbulent stress combinations which appear in the mean streamwise vorticity equation. As a consequence of this investigation, a new formulation of turbulent stress modification is proposed, which appears to better predict the turbulent stress distributions for a variety of flows: channel flow, equilibrium boundary layers, pipe flow, separated boundary layers, and square duct flow.
dc.description.sponsorshipThis material is based upon work supported by the US Air Force O ce of Scientific Research under award FA9550–16–1–0430.
dc.publisherCambridge University Press
dc.rightsAll rights reserved
dc.rights.uri
dc.titleAnalysis and extension of the quadratic constitutive relation for RANS methodsen
dc.typeArticle
prism.publicationNameThe Aeronautical Journalen
dc.identifier.doi10.17863/CAM.68593
dcterms.dateAccepted2021-04-20en
rioxxterms.versionAM
rioxxterms.licenseref.urihttp://www.rioxx.net/licenses/all-rights-reserveden
rioxxterms.licenseref.startdate2021-04-20en
dc.contributor.orcidSabnis, Kshitij [0000-0001-7609-2923]
dc.contributor.orcidBabinsky, Holger [0000-0002-7647-7126]
rioxxterms.typeJournal Article/Reviewen
pubs.funder-project-idEuropean Office of Aerospace Research and Development (EOARD) (FA8655-11-1-3002)
cam.orpheus.counter23*
rioxxterms.freetoread.startdate2024-04-22


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record