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Effects of a Contour Bump on the Unsteady Transonic Aerodynamic Forces of the AMP Wing

Send, W. and Voß, R. (1998) Effects of a Contour Bump on the Unsteady Transonic Aerodynamic Forces of the AMP Wing. 11. DGLR-Fach-Symposium Strömung mit Ablösung, TU Berlin, 10.-12.11.1998.

Full text not available from this repository.

Abstract

The effects of a contour bump on steady and unsteady aerodynamics are investigated for both a 2D profile section and a 3D wing, e.g. the AMP model. The supercritical airfoil NLR7301 is chosen as the 2D case for which the shapes of the pressure distributions in steady and unsteady transonic flow demonstrate the differences between the cases with and without bump. For the AMP wing, a 3D bump is shaped in such a maner that it traces the shock area of the elastically deformed wing. Steady and unsteady pressure coefficients are shown for both configurations. The unsteady transonic aerodynamic forces of the AMP wing are subject to flutter calculations. At first comparison of the flutter boundaries with and without bump indicates that the presence of a bump, with its desired effect of drag reduction in transonic flow, also reduces flutter stability for the same physical reasons.

Item URL in elib:https://elib.dlr.de/14126/
Document Type:Conference or Workshop Item (Paper)
Additional Information: LIDO-Berichtsjahr=1999,
Title:Effects of a Contour Bump on the Unsteady Transonic Aerodynamic Forces of the AMP Wing
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Send, W.UNSPECIFIEDUNSPECIFIED
Voß, R.UNSPECIFIEDUNSPECIFIED
Date:1998
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Status:Published
Keywords:supercritical airfoil, unsteady transonic flow, flutter, adaptive wing
Event Title:11. DGLR-Fach-Symposium Strömung mit Ablösung, TU Berlin, 10.-12.11.1998
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):UNSPECIFIED
Location: Göttingen
Institutes and Institutions:Institute of Aeroelasticity
Deposited By: DLR-Beauftragter, elib
Deposited On:16 Sep 2005
Last Modified:14 Jan 2010 21:26

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