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Numerical Modeling of Wind Tunnel Walls for the Investigation of Oscillating Airfoils

Kaiser, Christoph and Nitzsche, Jens (2014) Numerical Modeling of Wind Tunnel Walls for the Investigation of Oscillating Airfoils. In: New Results in Numerical and Experimental Fluid Mechanics X, 132, pp. 457-465. Springer International Publishing. 19. DGLR-Fach-Symposium der STAB, 04.-05. Nov. 2014, München, Deutschland. ISBN 978 3 319 27278 8

Full text not available from this repository.

Official URL: http://link.springer.com/chapter/10.1007/978-3-319-27279-5_40

Abstract

The numerical modeling of airfoil oscillations in wind tunnels is investigated on the basis of frequency response functions of the flow field due to a forced motion input employing unsteady RANS simulations. The analyzed models rea sonably predict the unsteady wind-tunnel wall effects, including the acoustic wind tunnel resonance. For high frequencies, however, the model shows significant spurious fluctuations related to non-physical reflections at the outflow boundary. Therefore, both increasing the distance to the computational boundaries and a nominally less-reflective boundary condition according to Hedstrom (1979, J. Comput. Phys. 30:222–237) are examined leading to slightly improved results.

Item URL in elib:https://elib.dlr.de/107545/
Document Type:Conference or Workshop Item (Speech)
Title:Numerical Modeling of Wind Tunnel Walls for the Investigation of Oscillating Airfoils
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Kaiser, Christophchristoph.kaiser (at) dlr.deUNSPECIFIED
Nitzsche, Jensjens.nitzsche (at) dlr.deUNSPECIFIED
Date:2014
Journal or Publication Title:New Results in Numerical and Experimental Fluid Mechanics X
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Volume:132
Page Range:pp. 457-465
Editors:
EditorsEmail
Dillmann, AndreasUNSPECIFIED
Heller, GerdUNSPECIFIED
Krämer, EwaldUNSPECIFIED
Wagner, ClausUNSPECIFIED
Breitsamter, ChristianUNSPECIFIED
Publisher:Springer International Publishing
Series Name:Notes on Numerical Fluid Mechanics and Multidisciplinary Design
ISBN:978 3 319 27278 8
Status:Published
Keywords:wind tunnel walls, wind tunnel resonance, oscillating airfoil, non-reflective boundary conditions
Event Title:19. DGLR-Fach-Symposium der STAB
Event Location:München, Deutschland
Event Type:national Conference
Event Dates:04.-05. Nov. 2014
Organizer:Deutschen Strömungsmechanischen Arbeitsgemeinschaft (STAB)
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
Location: Göttingen
Institutes and Institutions:Institute of Aeroelasticity > Aeroelastic Simulations
Deposited By: Kaiser, Christoph
Deposited On:09 Dec 2016 08:31
Last Modified:09 Dec 2016 08:31

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