Computational simulation of separated flow in a three-dimensional diffuser using v2-f and zeta-f models

dc.contributor.advisor Paul A. Durbin
dc.contributor.advisor Tom I-P Shih
dc.contributor.advisor Hui Hu Ryon, Jason
dc.contributor.department Aerospace Engineering 2018-08-22T15:44:00.000 2020-06-30T07:44:19Z 2020-06-30T07:44:19Z Tue Jan 01 00:00:00 UTC 2008 2008-01-01
dc.description.abstract <p>Computational prediction of separated flows is an area of interest, specifically in applications to gas turbine engines, liquid pumps, and many other engineering applications. Although these types of flows are governed by the Navier-Stokes equations, direct numerical simulation (DNS) of practical engineering flows is currently too expensive in terms of the required computational time. It is therefore a case to attempt simulation of these flows using the Reynolds-Averaged Navier-Stokes (RANS) equations which must be closed by utilizing a turbulence closure model.;The present study used the NASA Glenn-HT code, a compressible Navier-Stokes solver, with two different turbulence models, the u2 --f model of Durbin and the zeta-- f model of Hanjalic, to observe their abilities to predict separated flows. The elliptic relaxation turbulence models and their implementation in Glenn-HT are described. Three cases are described to show the ability and limitations of these turbulence models.</p>
dc.format.mimetype application/pdf
dc.identifier archive/
dc.identifier.articleid 16410
dc.identifier.contextkey 7028847
dc.identifier.s3bucket isulib-bepress-aws-west
dc.identifier.submissionpath rtd/15411
dc.language.iso en
dc.source.bitstream archive/|||Fri Jan 14 20:40:44 UTC 2022
dc.subject.disciplines Aerospace Engineering
dc.subject.keywords Aerospace engineering;
dc.title Computational simulation of separated flow in a three-dimensional diffuser using v2-f and zeta-f models
dc.type article
dc.type.genre thesis
dspace.entity.type Publication
relation.isOrgUnitOfPublication 047b23ca-7bd7-4194-b084-c4181d33d95d thesis Master of Science
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