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Experimental results on unsteady shock-wave/boundary-layer interaction induced by an impinging shock

Daub, Dennis and Willems, Sebastian and Gülhan, Ali (2015) Experimental results on unsteady shock-wave/boundary-layer interaction induced by an impinging shock. CEAS Space Journal. Springer. DOI: 10.1007/s12567-015-0102-4 ISSN 1868-2502

Full text not available from this repository.

Official URL: http://link.springer.com/article/10.1007/s12567-015-0102-4

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 high-speed 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. In the separation area, higher frequencies were also 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/97793/
Document Type:Article
Title:Experimental results on unsteady shock-wave/boundary-layer interaction induced by an impinging shock
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:CEAS Space Journal
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:Yes
DOI :10.1007/s12567-015-0102-4
Publisher:Springer
ISSN:1868-2502
Status:Published
Keywords:Supersonic flow, Impinging shock, Shock unsteadiness, Turbulence, Boundary-layer separation, High-speed measurement, Experiment
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:31 Aug 2015 10:24
Last Modified:14 Dec 2019 04:27

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