Ludwieg-Tube Experiments on the Effects of Laminar-Turbulent Transition on the SWBLI at Mach 6
Schülein, Erich and Wagner, Alexander (2012) Ludwieg-Tube Experiments on the Effects of Laminar-Turbulent Transition on the SWBLI at Mach 6. DLR-Interner Bericht. DLR-IB 224-2011 A 64, 72 S.
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This report presents results of experimental investigations on the nominally 2-D impinging shock-wave interaction, induced by a 4 degree shock generator, with the transitional boundary layer developing on a flat plate at various unit Reynolds numbers and Mach 6 flow conditions. This investigations were conducted as the part of the ESA-project "Laminar to Turbulent Transition in Hypersonic Flows" to characterize the transition- and intermittency-detection techniques. Novel types of gages for high-frequency time-resolved heat flux (ALTP-gages) and pressure (PCBgages) measurements as well as the conventional thin-film and thermocouple heat-flux sensors were tested for this purpose and checked for plausibility by comparison with results of the quantitative infrared-thermography and high-speed shadowgraphy well-established for transition detection in quasi-steady flows. The advantages and limitations of each sensor type are discussed here.
|Document Type:||Monograph (DLR-Interner Bericht)|
|Title:||Ludwieg-Tube Experiments on the Effects of Laminar-Turbulent Transition on the SWBLI at Mach 6|
|Date:||22 June 2012|
|Number of Pages:||72|
|Keywords:||Transition, Experiment, Heat Flux, Infrared Thermography, Hypersonic|
|HGF - Research field:||Aeronautics, Space and Transport|
|HGF - Program:||Aeronautics|
|HGF - Program Themes:||L AR - Aircraft Research|
|DLR - Research area:||Aeronautics|
|DLR - Program:||L AR - Aircraft Research|
|DLR - Research theme (Project):||L - Military Technologies|
|Institutes and Institutions:||Institute of Aerodynamics and Flow Technology > Spacecraft|
Institute of Aerodynamics and Flow Technology > High Speed Configurations
|Deposited By:||Dr.rer.nat. Erich Schülein|
|Deposited On:||20 Nov 2012 13:41|
|Last Modified:||20 Nov 2012 13:41|
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