LARGE-EDDY SIMULATIONS OF A SEPARATION/REATTACHMENT BUBBLE IN A TURBULENT-BOUNDARY-LAYER SUBJECTED TO A PRESCRIBED UPPER-BOUNDARY, VERTICAL-VELOCITY PROFILE

Handle URI:
http://hdl.handle.net/10754/566965
Title:
LARGE-EDDY SIMULATIONS OF A SEPARATION/REATTACHMENT BUBBLE IN A TURBULENT-BOUNDARY-LAYER SUBJECTED TO A PRESCRIBED UPPER-BOUNDARY, VERTICAL-VELOCITY PROFILE
Authors:
Cheng, Wan; Pullin, D. I.; Samtaney, Ravi ( 0000-0002-4702-6473 )
Abstract:
We describe large-eddy simulations of turbulent boundary-layer flow over a flat plate at high Reynolds number in the presence of an unsteady, three-dimensional flow separation/reattachment bubble. The stretched-vortex subgrid-scale model is used in the main flow domain combined with a wall-model that is a two-dimensional extension of that developed by Chung & Pullin (2009). Flow separation and re-attachment of the incoming boundary layer is induced by prescribing wall-normal velocity distribution on the upper boundary of the flow domain that produces an adverse-favorable stream-wise pressure distribution at the wall. The LES predicts the distribution of mean shear stress along the wall including the interior of the separation bubble. Several properties of the separation/reattachment flow are discussed.
KAUST Department:
Mechanical Engineering Program; Physical Sciences and Engineering (PSE) Division
Journal:
Proceedings of Ninth International Symposium on Turbulence and Shear Flow Phenomena (TSFP-9)
Conference/Event name:
Ninth International Symposium on Turbulence and Shear Flow Phenomena (TSFP-9)
Issue Date:
30-Jun-2015
Type:
Conference Paper
Additional Links:
ftp://tepeu.sisal.unam.mx/TSFP9/full_paper/9D-1.pdf
Appears in Collections:
Conference Papers; Physical Sciences and Engineering (PSE) Division; Mechanical Engineering Program

Full metadata record

DC FieldValue Language
dc.contributor.authorCheng, Wanen
dc.contributor.authorPullin, D. I.en
dc.contributor.authorSamtaney, Ravien
dc.date.accessioned2015-08-13T11:27:53Zen
dc.date.available2015-08-13T11:27:53Zen
dc.date.issued2015-06-30en
dc.identifier.urihttp://hdl.handle.net/10754/566965en
dc.description.abstractWe describe large-eddy simulations of turbulent boundary-layer flow over a flat plate at high Reynolds number in the presence of an unsteady, three-dimensional flow separation/reattachment bubble. The stretched-vortex subgrid-scale model is used in the main flow domain combined with a wall-model that is a two-dimensional extension of that developed by Chung & Pullin (2009). Flow separation and re-attachment of the incoming boundary layer is induced by prescribing wall-normal velocity distribution on the upper boundary of the flow domain that produces an adverse-favorable stream-wise pressure distribution at the wall. The LES predicts the distribution of mean shear stress along the wall including the interior of the separation bubble. Several properties of the separation/reattachment flow are discussed.en
dc.relation.urlftp://tepeu.sisal.unam.mx/TSFP9/full_paper/9D-1.pdfen
dc.titleLARGE-EDDY SIMULATIONS OF A SEPARATION/REATTACHMENT BUBBLE IN A TURBULENT-BOUNDARY-LAYER SUBJECTED TO A PRESCRIBED UPPER-BOUNDARY, VERTICAL-VELOCITY PROFILEen
dc.typeConference Paperen
dc.contributor.departmentMechanical Engineering Programen
dc.contributor.departmentPhysical Sciences and Engineering (PSE) Divisionen
dc.identifier.journalProceedings of Ninth International Symposium on Turbulence and Shear Flow Phenomena (TSFP-9)en
dc.conference.dateJune 30 - July 3, 2015en
dc.conference.nameNinth International Symposium on Turbulence and Shear Flow Phenomena (TSFP-9)en
dc.conference.locationThe University of Melbourne, Australiaen
dc.eprint.versionPublisher's Version/PDFen
dc.contributor.institutionGraduate Aerospace Laboratories California Institute of Technology 1200 E. California Blvd. Pasadena CA 91125en
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