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Aeroelastic Research and Unsteady Aerodynamics at DLR.

Voß, R. (1994) Aeroelastic Research and Unsteady Aerodynamics at DLR. bei Wright Patterson Air Force Base, Dayton, Ohio, USA, 17.05.1994..

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Abstract

In the first part of the seminar "Aeroelastic Research Activities at DLR" an overview over current work at the DLR Institute of Aeroelasticity in the fields of structural dynamics, aeroelastic stability of wings, nacelles and cascades and unsteady aerodynamic code developments and tests is given. Then those research activities are reviewed, which focus on the main aeronautical guiding configurations, namely flexible transport aircraft with high bypass ratio engines (AIRBUS), adaptive transport wing and propfans. Improvement of aeroelastic prediction depends significantly on progress in aerodynamic code developments. The problem of predicting the transonic dip for a clean transport wing is not yet solved satisfactorily. Other problems like unsteady (shock induced) separation close to the design condition of supercritical wings, interference effects of large engine nacelles as well as static and dynamic deformations of elastic wings have to be taken into account and demand improved unsteady CFD codes. These points were investigated in a comprehensive test on a supercritical transport wing model (Aeroelastic Model Program). Within the currentDLR-project CASWING unsteady aerodynamic codes and flutter prediction methods will be improved and tested in a series of validation experiments, ranging from oscillating airfoils to a wing-nacelle configuration. In a third phase the improved numerical tools will be applied to the project of an Adaptive Transonic Transport Wing.

Item URL in elib:https://elib.dlr.de/39672/
Document Type:Conference or Workshop Item (Speech)
Additional Information: LIDO-Berichtsjahr=1994,
Title:Aeroelastic Research and Unsteady Aerodynamics at DLR.
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Voß, R.UNSPECIFIEDUNSPECIFIED
Date:1994
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Series Name:Beigaben Folien
Status:Published
Keywords:Instationaere Aerodynamik, CFD-Verfahren.
Event Title:bei Wright Patterson Air Force Base, Dayton, Ohio, USA, 17.05.1994.
HGF - Research field:UNSPECIFIED
HGF - Program:Aeronautics
HGF - Program Themes:other
DLR - Research area:UNSPECIFIED
DLR - Program:L ST - Starrflüglertechnologien
DLR - Research theme (Project):UNSPECIFIED
Location: Göttingen
Institutes and Institutions:Institute of Aeroelasticity
Deposited By: DLR-Beauftragter, elib
Deposited On:02 Apr 2006
Last Modified:27 Apr 2009 10:50

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