Nitzsche, Jens and Brouwers, Kjell and Gardner, Anthony and Mai, Holger and Dietz, Guido and Naudin, Pascal and Leconte, Philippe (2008) Investigation of Unsteady Control Surface Aerodynamics on a 2D Supercritical Airfoil Model. Deutscher Luft- und Raumfahrtkongress 2008, 2008-09-23 - 2008-09-25, Darmstadt, Deutschland (Europa).
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Abstract
We present experimental and numerical investigations of steady and unsteady transonic flow past a 2-d supercritical airfoil equipped with a dynamically deflectable trailing edge flap of 25% chord length. Within the project COSDYNA an experimental data base was created for CFD code validation purposes. It includes steady and unsteady test cases for Mach numbers between 0.5 and 0.82. The unsteady cases comprise global pitch oscillations as well as pure flap oscillations for various excitation frequencies and amplitudes. In this paper DLR’s URANS solver TAU is used for comparative two-dimensional steady and unsteady computations. At this, we focus on five forced harmonic flap oscillation test cases, each for the reduced frequencies 0.1, 0.3 and 0.7. The overall agreement is shown to be satisfactory, even for separated flows.
Item URL in elib: | https://elib.dlr.de/56119/ | ||||||||||||||||||||||||||||||||
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Document Type: | Conference or Workshop Item (Speech, Paper) | ||||||||||||||||||||||||||||||||
Title: | Investigation of Unsteady Control Surface Aerodynamics on a 2D Supercritical Airfoil Model | ||||||||||||||||||||||||||||||||
Authors: |
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Date: | 2008 | ||||||||||||||||||||||||||||||||
Refereed publication: | No | ||||||||||||||||||||||||||||||||
Open Access: | No | ||||||||||||||||||||||||||||||||
Gold Open Access: | No | ||||||||||||||||||||||||||||||||
In SCOPUS: | No | ||||||||||||||||||||||||||||||||
In ISI Web of Science: | No | ||||||||||||||||||||||||||||||||
Status: | Published | ||||||||||||||||||||||||||||||||
Keywords: | unsteady aerodynamics, control surface, transonic flow, COSDYNA | ||||||||||||||||||||||||||||||||
Event Title: | Deutscher Luft- und Raumfahrtkongress 2008 | ||||||||||||||||||||||||||||||||
Event Location: | Darmstadt, Deutschland (Europa) | ||||||||||||||||||||||||||||||||
Event Type: | national Conference | ||||||||||||||||||||||||||||||||
Event Start Date: | 23 September 2008 | ||||||||||||||||||||||||||||||||
Event End Date: | 25 September 2008 | ||||||||||||||||||||||||||||||||
Organizer: | Deutsche Gesellschaft für Luft- und Raumfahrt - Lilienthal-Oberth e.V. (DGLR) | ||||||||||||||||||||||||||||||||
HGF - Research field: | Aeronautics, Space and Transport | ||||||||||||||||||||||||||||||||
HGF - Program: | Aeronautics | ||||||||||||||||||||||||||||||||
HGF - Program Themes: | Aircraft Research (old) | ||||||||||||||||||||||||||||||||
DLR - Research area: | Aeronautics | ||||||||||||||||||||||||||||||||
DLR - Program: | L AR - Aircraft Research | ||||||||||||||||||||||||||||||||
DLR - Research theme (Project): | L - Flexible Aircraft (old) | ||||||||||||||||||||||||||||||||
Location: | Göttingen | ||||||||||||||||||||||||||||||||
Institutes and Institutions: | Institute of Aeroelasticity | ||||||||||||||||||||||||||||||||
Deposited By: | Erdmann, Daniela | ||||||||||||||||||||||||||||||||
Deposited On: | 14 Nov 2008 | ||||||||||||||||||||||||||||||||
Last Modified: | 24 Apr 2024 19:20 |
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