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Unsteady Aerodynamic Forces on an Oscillating Wing at High Incidences and Flow Separation.

Försching, H. (1990) Unsteady Aerodynamic Forces on an Oscillating Wing at High Incidences and Flow Separation. In: AGARD-CP-483. AGARD, 70th Meeting of the Structures and Materials Panel, Sorrento, Italy, 1-6 April 1990 Specialists' Meeting on Aircraft Dynamic Loads Due to Flow Separation, Paper No. 14.

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Abstract

Based on wind tunnel measurements on a low-aspect-ratio trapezoidal half-wing model in incompressible flow, some characteristic features of motion-induced unsteady airloads at high incidences and flow separation are presented and discussed. Special emphasis is placed on the effect of the motion of the wing on the flow separation processes and on the investigation of the interactions between the separated flow phenomena on the stationary wing and the motion-induced unsteady airloads on the oscillating wing. It is shown that these airloads are strongly affected by the flow separations and that their prediction from inviscid potential-flow theory may lead to rather unrealistic results in buffeting response calculations.

Document Type:Conference or Workshop Item (Paper)
Additional Information: institution=AGARD, LIDO-Berichtsjahr=1990,
Title:Unsteady Aerodynamic Forces on an Oscillating Wing at High Incidences and Flow Separation.
Authors:
AuthorsInstitution or Email of Authors
Försching, H.UNSPECIFIED
Date:1990
Journal or Publication Title:AGARD-CP-483
Status:Published
Keywords:Structural Vibrations, Unsteady Aerodynamics, Aeroelasticity, Buffeti ng
Event Title:AGARD, 70th Meeting of the Structures and Materials Panel, Sorrento, Italy, 1-6 April 1990 Specialists' Meeting on Aircraft Dynamic Loads Due to Flow Separation, Paper No. 14
HGF - Research field:UNSPECIFIED
HGF - Program:other
HGF - Program Themes:other
DLR - Research area:UNSPECIFIED
DLR - Program:no assignment
DLR - Research theme (Project):UNSPECIFIED
Location: Göttingen
Institutes and Institutions:Institute of Aeroelasticity
Deposited By: elib DLR-Beauftragter
Deposited On:02 Apr 2006
Last Modified:27 Apr 2009 10:41

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