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Numerical Simulation of Vortex Roll-Up Processes Using the SSG/LRR-ω Model

Braun, Sebastian and Uhl, Anna and Eisfeld, Bernhard and Stumpf, Eike (2016) Numerical Simulation of Vortex Roll-Up Processes Using the SSG/LRR-ω Model. In: New Results in Numerical and Experimental Fluid Mechanics X Notes on Numerical Fluid Mechanics and Multidisciplinary Design, 132. Springer. pp. 481-491. doi: 10.1007/978-3-319-27279-5. ISBN 978-3-319-27279-8. ISSN 1612-2909.

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Vortex roll-up processes at two different wing tip shapes are investigated using the DLR TAU flow solver in combination with a Reynolds Stress Model. The performance of the SSG/LRR-ω Reynolds Stress Model is hereby explored. Results from simulations are compared to state-of-the-art eddy-viscosity models as well as experimental results from literature and own investigations. The SSG/LRR-ω model predicts the mean flow much more accurately than the eddy-viscosity models. However, deviations up to 15% compared to experiments can be found which are related to an inaccurate prediction of the Reynolds stresses in the inner vortex core.

Item URL in elib:https://elib.dlr.de/109294/
Document Type:Contribution to a Collection
Title:Numerical Simulation of Vortex Roll-Up Processes Using the SSG/LRR-ω Model
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Braun, SebastianSebastian.Braun (at) dlr.deUNSPECIFIED
Uhl, Annauhl (at) ilr.rwth-aachen.deUNSPECIFIED
Eisfeld, BernhardBernhard.Eisfeld (at) dlr.deUNSPECIFIED
Stumpf, Eikestumpf (at) ilr.rwth-aachen.deUNSPECIFIED
Journal or Publication Title:New Results in Numerical and Experimental Fluid Mechanics X
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In ISI Web of Science:No
DOI :10.1007/978-3-319-27279-5
Page Range:pp. 481-491
EditorsEmailEditor's ORCID iD
Dillmann, AndreasDLR GöttingenUNSPECIFIED
Heller, GerdAirbus BremenUNSPECIFIED
Wagner, ClausDLR GöttingenUNSPECIFIED
Breitsamter, ChristianTU MünchenUNSPECIFIED
Krämer, EwaldUni StuttgartUNSPECIFIED
Series Name:Notes on Numerical Fluid Mechanics and Multidisciplinary Design
Keywords:Reynolds stress model, vortex, CFD, TAU
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:fixed-wing aircraft
DLR - Research area:Aeronautics
DLR - Program:L AR - Aircraft Research
DLR - Research theme (Project):L - Simulation and Validation (old)
Location: Braunschweig
Institutes and Institutions:Institute of Aerodynamics and Flow Technology > C²A²S²E - Center for Computer Applications in AeroSpace Science and Engineering
Deposited By: Braun, Sebastian
Deposited On:08 Dec 2016 14:33
Last Modified:08 Dec 2016 14:33

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