Development of an elliptic blending lag k — ω model

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dc.contributor.author Biswas, Rajarshi
dc.contributor.author Durbin, Paul
dc.contributor.author Durbin, Paul
dc.contributor.author Medic, Gorazd
dc.contributor.department Aerospace Engineering
dc.date 2019-02-15T03:10:59.000
dc.date.accessioned 2020-06-29T22:45:31Z
dc.date.available 2020-06-29T22:45:31Z
dc.date.copyright Tue Jan 01 00:00:00 UTC 2019
dc.date.embargo 2021-01-24
dc.date.issued 2019-04-01
dc.description.abstract <p>The elliptic-blending, lag parameter approach is developed for the conventional <em>k</em> — ω, linear eddy viscosity model. A scalar parameter designed to represent the effects of stress-strain misalignment is used to scale the eddy viscosity. From the definition of the parameter, an additional transport equation is formed from an underlying Reynolds stress model. Balance between the near wall and away from wall terms of the new transport equation is maintained through a blending parameter which is a solution of an elliptic equation. The new model improves the prediction of separated flows, ranging from canonical to complex geometries, while maintaining numerical simplicity. Several two dimensional flow configurations have been tested with the proposed formulation and the results show improved agreement with existing experimental and DNS/LES data.</p>
dc.description.comments <p>This is a manuscript of an article published as Biswas, Rajarshi, Paul A. Durbin, and Gorazd Medic. "Development of an elliptic blending lag <em>k</em> − ω model." <em>International Journal of Heat and Fluid Flow</em> 76 (2019): 26-39. DOI: <a href="http://dx.doi.org/10.1016/j.ijheatfluidflow.2019.01.011" target="_blank">10.1016/j.ijheatfluidflow.2019.01.011</a>. Posted with permission. </p>
dc.format.mimetype application/pdf
dc.identifier archive/lib.dr.iastate.edu/aere_pubs/138/
dc.identifier.articleid 1139
dc.identifier.contextkey 13740850
dc.identifier.s3bucket isulib-bepress-aws-west
dc.identifier.submissionpath aere_pubs/138
dc.identifier.uri https://dr.lib.iastate.edu/handle/20.500.12876/1983
dc.language.iso en
dc.source.bitstream archive/lib.dr.iastate.edu/aere_pubs/138/2019_DurbinPaul_DevelopmentElliptic.pdf|||Fri Jan 14 20:01:28 UTC 2022
dc.source.uri 10.1016/j.ijheatfluidflow.2019.01.011
dc.subject.disciplines Aerodynamics and Fluid Mechanics
dc.subject.disciplines Aerospace Engineering
dc.subject.keywords Turbulence modeling
dc.subject.keywords Stress-strain misalignment
dc.subject.keywords Lag parameter
dc.subject.keywords Elliptic blending
dc.title Development of an elliptic blending lag k — ω model
dc.type article
dc.type.genre article
dspace.entity.type Publication
relation.isAuthorOfPublication 3f74ce5e-8f72-4b32-9592-72cb91b67eb1
relation.isOrgUnitOfPublication 047b23ca-7bd7-4194-b084-c4181d33d95d
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