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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.
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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/ | ||||||||||||||||||
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| Document Type: | Conference or Workshop Item (Speech) | ||||||||||||||||||
| Title: | Numerical Modeling of Wind Tunnel Walls for the Investigation of Oscillating Airfoils | ||||||||||||||||||
| Authors: |
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| 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: |
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| 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 (old) | ||||||||||||||||||
| 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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