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Effects of Laminar-Turbulent Transition on the Shock-Wave/Boundary-Layer Interaction

Schülein, Erich (2014) Effects of Laminar-Turbulent Transition on the Shock-Wave/Boundary-Layer Interaction. AIAA Aviation and Aeronautics Forum and Exposition (AVIATION 2014), 16. - 20. June 2014, Atlanta, Georgia, USA.

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Official URL: http://arc.aiaa.org/doi/pdf/10.2514/6.2014-3332


This paper presents results of experimental investigations of the nominally 2-D impinging shock-wave interaction with the transitional boundary layer developing on a flat plate at Mach 6 flow conditions. Experiments were conducted in the Ludwieg-Tube Facility at DLR Göttingen using quantitative infrared-thermography, high-speed shadowgraphy and free-stream Pitot-pressure fluctuation measurements. Natural-transition and shockimpingement locations on the flat plate were varied independently in order to establish different initial boundary-layer conditions at the interaction region. The results demonstrate significant impact of these mutual positions on the induced flow topology and on the heat-flux distribution. A range of CFD-validation test cases was created representing transition phenomena in some details. The distribution of the normalized Stanton number, generalized in the present work for a wide range of unit Reynolds numbers, indicate a clear narrow maximum inside the transition region.

Item URL in elib:https://elib.dlr.de/85891/
Document Type:Conference or Workshop Item (Speech)
Additional Information:DOI: 10.2514/6.2014-3332, 44th AIAA Fluid Dynamics Conference, Paper-Nr.: AIAA 2014-3332
Title:Effects of Laminar-Turbulent Transition on the Shock-Wave/Boundary-Layer Interaction
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Schülein, Ericherich.schuelein (at) dlr.deUNSPECIFIED
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In ISI Web of Science:No
Page Range:pp. 1-23
Series Name:Conference Proceedings online
Keywords:SWBLI, Heat-Flux, Stanton Number, Experiment, IR-Thermography, Transition detection
Event Title:AIAA Aviation and Aeronautics Forum and Exposition (AVIATION 2014)
Event Location:Atlanta, Georgia, USA
Event Type:international Conference
Event Dates:16. - 20. June 2014
Organizer:American Institute of Aeronautics and Astronautics (AIAA)
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:fixed-wing aircraft
DLR - Research area:Aeronautics
DLR - Program:L AR - Aircraft Research
DLR - Research theme (Project):L - Military Technologies (old)
Location: Göttingen
Institutes and Institutions:Institute of Aerodynamics and Flow Technology > High Speed Configurations
Deposited By: Micknaus, Ilka
Deposited On:23 Jul 2014 15:51
Last Modified:21 Oct 2014 13:48

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