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van der Wall, Berend G. and Leishman, Gordon (1994) On the Influence of Time-Varying Flow Velocity on Unsteady Aerodynamics. Journal of the American Helicopter Society, 39 (4), pp. 25-36. ISSN 0002-8711.
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Abstract
The effects of a periodic free-stream velocity on the unsteady aerodynamics of an airfoil in incompressible flow are examined. Existing theories are reviewed, and their simplifications and limitations are properly identified. A new general aerodynamic theory for an airfoil undergoing a combination of harmonic pitching, plunging and fore-aft motion is presented. An extension to arbitrary free-stream velocity variations and arbitrary airfoil motion is also given. The theoretical results are validated against numerical predictions made by a modern Euler code.
| Item URL in elib: | https://elib.dlr.de/20302/ | ||||||||||||
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| Document Type: | Article | ||||||||||||
| Title: | On the Influence of Time-Varying Flow Velocity on Unsteady Aerodynamics | ||||||||||||
| Authors: |
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| Date: | October 1994 | ||||||||||||
| Journal or Publication Title: | Journal of the American Helicopter Society | ||||||||||||
| Refereed publication: | Yes | ||||||||||||
| Open Access: | No | ||||||||||||
| Gold Open Access: | No | ||||||||||||
| In SCOPUS: | No | ||||||||||||
| In ISI Web of Science: | Yes | ||||||||||||
| Volume: | 39 | ||||||||||||
| Page Range: | pp. 25-36 | ||||||||||||
| Editors: |
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| ISSN: | 0002-8711 | ||||||||||||
| Status: | Published | ||||||||||||
| Keywords: | unsteady aerodynamics, variable free-stream | ||||||||||||
| HGF - Research field: | Aeronautics, Space and Transport (old) | ||||||||||||
| HGF - Program: | Aeronautics | ||||||||||||
| HGF - Program Themes: | Rotorcraft (old) | ||||||||||||
| DLR - Research area: | Aeronautics | ||||||||||||
| DLR - Program: | L RR - Rotorcraft Research | ||||||||||||
| DLR - Research theme (Project): | L - The Active Rotorcraft (old) | ||||||||||||
| Location: | Braunschweig | ||||||||||||
| Institutes and Institutions: | Institute of Flight Systems > Rotorcraft | ||||||||||||
| Deposited By: | van der Wall, Prof. Dr. Berend G. | ||||||||||||
| Deposited On: | 15 Dec 2005 | ||||||||||||
| Last Modified: | 27 Apr 2009 04:45 |
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