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Shock induced fluid structure interaction on a flat plate in supersonic turbulent flow

Willems, Sebastian and Gülhan, Ali and Esser, Burkard (2010) Shock induced fluid structure interaction on a flat plate in supersonic turbulent flow. Euromech Fluid Mechanics Conference - 8, 13.-16. Sep. 2010, Bad Reichenhall, Deutschland.

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Abstract

For the development of new lightweight structures for space transportation systems a comprehension of the fluid structure interactions in supersonic flows is necessary. Therefore this is one of the main topics of the Collaborative Research Centre Transregio 40. A first experimental study concentrating on the mechanical aspects of a fluid structure interaction was performed at the German Aerospace Center (DLR) in Cologne. The generic model used in this study allows to investigate the fundamental problem of the shock wave impingement on a turbulent boundary layer and the resulting structure deformation. So it combines the aspects of compressibility, flow separation, turbulence and aeroelasticity. To facilitate a comparison with detailed simulations big attention was paid to the characterization of the free stream flow and to achieve a fully developed turbulent boundary layer flow. With a Laser-2-Focus Velocimeter the turbulent intensity was measured at several positions in the stream. The boundary layer flow was characterized using a miniature Pitot-rake. The pressure distribution of the shock-boundary-interaction was measured with static PSI-sensors. During the experiments with structure deformation high-speed Schlieren photography, fast pressure sensors, fast non-intrusive displacement sensors and oil-film technique were employed. The results of these experiments will be presented at the conference.

Document Type:Conference or Workshop Item (Speech)
Additional Information:Sonderforschungsbereich Transregio 40
Title:Shock induced fluid structure interaction on a flat plate in supersonic turbulent flow
Authors:
AuthorsInstitution or Email of Authors
Willems, Sebastiansebastian.willems@dlr.de
Gülhan, Aliali.guelhan@dlr.de
Esser, Burkardburkard.esser@dlr.de
Date:September 2010
Keywords:Strömung-Struktur-Wechselwirkung, Stoß-Grenzschicht-Wechselwirkung, fluid structure interaction, shock boundary layer interaction
Event Title:Euromech Fluid Mechanics Conference - 8
Event Location:Bad Reichenhall, Deutschland
Event Type:international Conference
Event Dates:13.-16. Sep. 2010
Organizer:European Mechanics Society
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Space (old)
HGF - Program Themes:W - no assignement
DLR - Research area:Space
DLR - Program:W - no assignement
DLR - Research theme (Project):W -- no assignement (old)
Location: Köln-Porz
Institutes and Institutions:Institute of Aerodynamics and Flow Technology > Supersonic and Hypersonic Technology
Deposited By: Sebastian Willems
Deposited On:20 Dec 2010 14:56
Last Modified:12 Dec 2013 21:10

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