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Study of RANS Turbulence Models for Turbulent Wake Flow in Adverse Pressure Gradient

Knopp, Tobias and Korsmeier, Paul and Strelets, Mikhail and Guseva, Ekaterina (2021) Study of RANS Turbulence Models for Turbulent Wake Flow in Adverse Pressure Gradient. In: 22nd STAB/DGLR Symposium on New Results in Numerical and Experimental Fluid Mechanics XIII, 151, pp. 58-67. Springer Nature. 22. STAB/DGLR Symposium 2020, 15.07.2020, Göttingen; Deutschland. doi: 10.1007/978-3-030-79561-0_6. ISBN 978-3-030-79560-3. ISSN 1612-2909.

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Official URL: https://link.springer.com/book/10.1007/978-3-030-79561-0#editorsandaffiliations

Abstract

We present an analysis of RANS turbulence models for a new turbulent wake flow case in adverse pressure gradient. The reference data are obtained from an LES. RANS simulations using the Spalart-Allmaras model, the SST model and the SSG/LRR-ω model show a tendency to underpredict the onset of flow reversal in the wake. The comparison with the LES data reveals that the SSG/LRR-ω model underpredicts the turbulent transport of the Reynolds stresses and overpredicts the ratio of production to dissipation. Therefore two modifications of the SSG/LRR-ω model are studied, i.e., the modification of the coefficient of the gradient diffusion hypothesis for the turbulent transport of the Reynolds stresses and the sensitization of the dissipation rate to irrotational strains. Both modifications improve the agreement with the reference data.

Item URL in elib:https://elib.dlr.de/137855/
Document Type:Conference or Workshop Item (Other)
Additional Information:Hardcover ISBN 978-3-030-79560-3 Softcover ISBN 978-3-030-79563-4 eBook ISBN 978-3-030-79561-0 Series ISSN 1612-2909 Series E-ISSN 1860-0824
Title:Study of RANS Turbulence Models for Turbulent Wake Flow in Adverse Pressure Gradient
Authors:
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Knopp, Tobiastobias.knopp (at) dlr.dehttps://orcid.org/0000-0002-3161-5353
Korsmeier, PaulPaul.Korsmeier (at) dlr.deUNSPECIFIED
Strelets, MikhailSt.-Petersburg Polytechnic University and “New Technologies and Services” (NTS), St.-Petersburg, RussiaUNSPECIFIED
Guseva, EkaterinaSt.-Petersburg Polytechnic University & “New Technologies and Services”(NTS), St.-Petersburg, RussiaUNSPECIFIED
Date:14 July 2021
Journal or Publication Title:22nd STAB/DGLR Symposium on New Results in Numerical and Experimental Fluid Mechanics XIII
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:No
Volume:151
DOI :10.1007/978-3-030-79561-0_6
Page Range:pp. 58-67
Editors:
EditorsEmailEditor's ORCID iD
Dillmann, AndreasAndreas.Dillmann@dlr.deUNSPECIFIED
Heller, GerdAirbus BremenUNSPECIFIED
Krämer, EwaldInstitut für Aerodynamik und Gasdynamik, Universität StuttgartUNSPECIFIED
Wagner, ClausClaus.Wagner@dlr.deUNSPECIFIED
Publisher:Springer Nature
Series Name:Notes on Numerical Fluid Mechanics and Multidisciplinary Design
ISSN:1612-2909
ISBN:978-3-030-79560-3
Status:Published
Keywords:RANS; wake flow; adverse pressure gradient
Event Title:22. STAB/DGLR Symposium 2020
Event Location:Göttingen; Deutschland
Event Type:international Conference
Event Dates:15.07.2020
Organizer:STAB/DGLR
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:Efficient Vehicle
DLR - Research area:Aeronautics
DLR - Program:L EV - Efficient Vehicle
DLR - Research theme (Project):L - Digital Technologies
Location: Göttingen
Institutes and Institutions:Institute for Aerodynamics and Flow Technology > CASE, GO
Deposited By: Knopp, Dr.rer.nat. Tobias
Deposited On:24 Nov 2021 18:43
Last Modified:04 Jan 2022 11:09

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