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Experimental Results on Shock-Wave/Boundary-Layer Interaction Induced by a Movable Wedge

Daub, Dennis and Willems, Sebastian and Gülhan, Ali (2015) Experimental Results on Shock-Wave/Boundary-Layer Interaction Induced by a Movable Wedge. In: 8th European Symposium on Aerothermodynamics (89557). 8th European Symposium on Aerothermodynamics, 2.-6. March 2015, Lissabon, Portugal.

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Official URL: http://www.congrexprojects.com/Custom/15A01/Papers/Room%201.1/Wednesday/Measurement%20techniques%20IV/89557daub.pdf

Abstract

Experiments on shock-wave/boundary-layer interaction of an impinging shock on a flat panel at Mach numbers of 3 and 4 were conducted in the Trisonic Wind Tunnel (TMK) of the Supersonic and Hypersonic Technologies Department at DLR, Cologne. To obtain high frequency data, the model was equipped with 12 high-speed pressure transducers for measurements at 100 kHz and highspeed schlieren photography was used. The experimental setup is designed for quick rotation of the shock generator allowing testing at different ramp angles during one wind tunnel run. The static pressure distribution and high speed pressure fluctuations in the interaction area were analysed with regard to the spatial and temporal distribution of occurring frequencies. At the beginning of the separation and near the reattachment, a strong increase of low frequency fluctuations of up to 1 kHz was observed, while in the separated area also higher frequencies were excited. These results were compared to the frequencies and flow topology found in the high-speed schlieren videos.

Item URL in elib:https://elib.dlr.de/96120/
Document Type:Conference or Workshop Item (Speech)
Title:Experimental Results on Shock-Wave/Boundary-Layer Interaction Induced by a Movable Wedge
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Daub, DennisDennis.Daub (at) dlr.deUNSPECIFIED
Willems, Sebastiansebastian.willems (at) dlr.deUNSPECIFIED
Gülhan, AliAli.Guelhan (at) dlr.deUNSPECIFIED
Date:2015
Journal or Publication Title:8th European Symposium on Aerothermodynamics
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Series Name:Conference Proceedings online
Status:Published
Keywords:SWBLI, shock-wave/boundary-layer interaction, shock unsteadiness, turbulent supersonic boundary layer, shock induced separation
Event Title:8th European Symposium on Aerothermodynamics
Event Location:Lissabon, Portugal
Event Type:international Conference
Event Dates:2.-6. March 2015
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 May 2015 11:40
Last Modified:31 Jul 2019 19:52

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