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Performance Assessment of Some Popular RANS Models by Relevance to High-Lift Aerodynamics

Jakirlic, Suad and Eisfeld, Bernhard and Basara, Branislav (2009) Performance Assessment of Some Popular RANS Models by Relevance to High-Lift Aerodynamics. In: AIAA-Paper (2009-0049). American Institute of Aeronautics and Astronautics. AIAA Conference, 5-8 Jan 2009, Orlando.

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Comparative assessment of some most widely used RANS models ranging form eddy-viscosity type transport models (EVM), including also an elliptic-relaxation-method-based model version, to second-moment closures (SMC) utilizing the solutions of the equations governing the Reynolds stress tensor has been performed on the basis of selected flow configurations relevant to high-lift aerodynamics. A hybrid EVM/SMC model combining the advantages of both model groups with respect to numerical robustness pertinent to the EVM concept and the physical accuracy of the SMC schemes is also part of the present study. All models are the near-wall formulations. In addition, some model formulations were applied in conjunction with the universal wall boundary conditions combining the exact conditions and standard wall functions depending on the position of the wall-closest computational node. The computations were performed by using three codes, all based on the Finite Volume method, the DLR FLOWer code, the AVL FIRE code and the in-house code FUN-2D. The considered wall-bounded flow configurations affected by adverse pressure gradient causing weak and massive separation include a plane asymmetric diffuser and three high-lift airfoils: Aerospatiale A-airfoil, three-element airfoil and NACA 4412 airfoil (two angles of incidence: 13.87 deg. and 15 deg. were considered). The model results are analyzed and discussed in conjunctions with available experimental database.

Item URL in elib:https://elib.dlr.de/60604/
Document Type:Conference or Workshop Item (Speech, Paper)
Title:Performance Assessment of Some Popular RANS Models by Relevance to High-Lift Aerodynamics
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Jakirlic, Suads.jakirlic (at) sla.tu-darmstadt.deUNSPECIFIED
Eisfeld, Bernhardbernhard.eisfeld (at) dlr.deUNSPECIFIED
Basara, Branislavbranislav.basara (at) avl.comUNSPECIFIED
Journal or Publication Title:AIAA-Paper
Refereed publication:No
Open Access:No
Gold Open Access:No
In ISI Web of Science:No
Publisher:American Institute of Aeronautics and Astronautics
Keywords:Turbulence models, high-lift aerodynamics
Event Title:AIAA Conference
Event Location:Orlando
Event Type:international Conference
Event Dates:5-8 Jan 2009
Organizer:American Institute of Aeronautics and Astronautics (AIAA)
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Aeronautics
HGF - Program Themes:Aircraft Research (old)
DLR - Research area:Aeronautics
DLR - Program:L AR - Aircraft Research
DLR - Research theme (Project):L - Concepts & Integration (old)
Location: Braunschweig
Institutes and Institutions:Institute of Aerodynamics and Flow Technology > CASE
Deposited By: Eisfeld, Dr.-Ing. Bernhard
Deposited On:12 Nov 2009 10:51
Last Modified:12 Nov 2009 10:51

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