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Experiments on the Interaction of a Fast-Moving Shock with an Elastic Panel

Daub, Dennis and Willems, Sebastian and Gülhan, A. (2015) Experiments on the Interaction of a Fast-Moving Shock with an Elastic Panel. AIAA Journal. American Institute of Aeronautics and Astronautics (AIAA). DOI: 10.2514/1.J054233 ISSN 0001-1452

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Official URL: http://arc.aiaa.org/doi/abs/10.2514/1.J054233


Experiments on the interaction of a fast-moving oblique shock with an elastic panel in turbulent supersonic flow at Mach numbers of 3 and 4 were conducted to enhance the understanding of coupled flow–structure phenomena and for the validation of coupled simulations. A complex and challenging experimental setup allowed achieving remarkable shock motion, changing the impingement point within a few milliseconds, to excite high-amplitude oscillations of an elastic panel. The flowfield was analyzed by using high-speed pressure transducers and high-speed schlieren photography. The panel deflection was measured by nonintrusive high-speed capacitive and laser distance sensors. Measurements were also conducted on a rigid panel to be used as reference for the elastic case, and to allow a more detailed analysis of the shock-wave/boundary-layer interaction on the panel, yielding insights into the spatial and temporal distribution of frequencies occurring in the interaction area. Oscillations of the elastic panel with an amplitude of about 1 mm were obtained.

Item URL in elib:https://elib.dlr.de/98735/
Document Type:Article
Title:Experiments on the Interaction of a Fast-Moving Shock with an Elastic Panel
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Daub, DennisDennis.Daub (at) dlr.deUNSPECIFIED
Willems, Sebastiansebastian.willems (at) dlr.deUNSPECIFIED
Date:15 December 2015
Journal or Publication Title:AIAA Journal
Refereed publication:No
Open Access:No
Gold Open Access:No
In ISI Web of Science:Yes
DOI :10.2514/1.J054233
Publisher:American Institute of Aeronautics and Astronautics (AIAA)
Keywords:fluid–structure interaction (FSI), shock-wave/boundary-layer interaction (SWBLI), aeroelasticity, supersonic turbulent flow
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Space Transport
DLR - Research area:Raumfahrt
DLR - Program:R RP - Raumtransport
DLR - Research theme (Project):R - Raumfahrzeugsysteme - Konzepte und Entwurf
Location: Köln-Porz
Institutes and Institutions:Institute of Aerodynamics and Flow Technology > Über- und Hyperschalltechnologien
Deposited By: Daub, Dennis
Deposited On:06 Jan 2016 14:25
Last Modified:08 Mar 2018 18:42

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