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Local Power Exchange Between a Pitching and Plunging Airfoil and the Transonic Flow

Rina Bakker, (2004) Local Power Exchange Between a Pitching and Plunging Airfoil and the Transonic Flow. Diploma. DLR-Interner Bericht. 232-2004 J 05, 28 S.

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Abstract

The objective of this report is to gain a better understanding of the impact of the local aerodynamics about an airfoil on limit-cycle oscillations. Here the local power exchange is evaluated on the basis of measured static pressure distributions simultaneously obtained with motion data of the moving airfoil. The evaluation of the local power exchange is checked by comparison with the global power exchange obtained from the aerodynamic load coefficients. From the local power exchange over the airfoil can be concluded that the shock-wave dynamics mostly influences the amplification and the amplitude limitation of LCOs. Furthermore, possibly boundary-layer separation close to the trailing edge influences the behaviour of the aeroelastic system.

Item URL in elib:https://elib.dlr.de/14551/
Document Type:Monograph (DLR-Interner Bericht, Diploma)
Additional Information: LIDO-Berichtsjahr=2005,
Title:Local Power Exchange Between a Pitching and Plunging Airfoil and the Transonic Flow
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Rina Bakker, UNSPECIFIEDUNSPECIFIED
Date:2004
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Number of Pages:28
Status:Published
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Aeronautics
HGF - Program Themes:other
DLR - Research area:Aeronautics
DLR - Program:L ST - Starrflüglertechnologien
DLR - Research theme (Project):L - Flexible Aircraft (old)
Location: Göttingen
Institutes and Institutions:Institute of Aeroelasticity
Deposited By: Erdmann, Daniela
Deposited On:16 Sep 2005
Last Modified:14 Jan 2010 21:59

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