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Numerical Simulations of Streamwise Vortices on a Generic High-Lift Configuration

Landa, Tim and Radespiel, Rolf and Wild, Jochen (2016) Numerical Simulations of Streamwise Vortices on a Generic High-Lift Configuration. 54th AIAA Aerospace Sciences Meeting, 4.-8. Januar 2016, San Diego, CA, USA. DOI: 10.2514/6.2016-0304

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Official URL: http://arc.aiaa.org/doi/pdfplus/10.2514/6.2016-0304


The results of numerical simulations on a generic high-lift configuration are shown. The high-lift airfoil features a finite slat, where the slat-end creates strong longitudinal vortices interacting with the flow along the suction side. For the simulations, two computational grids with varying density are created. The properties of the grids are presented. The simulations are performed with the DLR TAU-Code at different angles of attack up to stall. The Menter-SST eddy viscosity turbulence model and the JHh-v2 Reynolds-Stress-Model are applied. Two vortices exist at the spanwise end faces of a slat and the corresponding clean-nose, they trail downstream on the suction side of the wing and influence the high-lift behavior of the configuration. A strong interaction between both vortices is observed for higher angles of attack. The behavior of the vortex system and the stall mechanism is characterized. In particular the effect of the turbulence models of different types on the vortex behavior is shown.

Item URL in elib:https://elib.dlr.de/109655/
Document Type:Conference or Workshop Item (Speech)
Title:Numerical Simulations of Streamwise Vortices on a Generic High-Lift Configuration
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Landa, TimTU BraunschweigUNSPECIFIED
Radespiel, RolfTU BraunschweigUNSPECIFIED
Wild, Jochenjochen.wild (at) dlr.deUNSPECIFIED
Date:January 2016
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In ISI Web of Science:No
DOI :10.2514/6.2016-0304
Keywords:high-lift, aerodynamics, slat, vortex, CFD
Event Title:54th AIAA Aerospace Sciences Meeting
Event Location:San Diego, CA, USA
Event Type:international Conference
Event Dates:4.-8. Januar 2016
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 - Flight Physics
Location: Braunschweig
Institutes and Institutions:Institute of Aerodynamics and Flow Technology > Transport Aircraft
Deposited By: Wild, Dr.-Ing. Jochen
Deposited On:15 Dec 2016 09:09
Last Modified:15 Dec 2016 09:09

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