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Skin Friction and Heat Flux Measurements in Shock Boundary Layer Interaction Flows

Schülein, Erich (2006) Skin Friction and Heat Flux Measurements in Shock Boundary Layer Interaction Flows. AIAA Journal, 44 (8), pp. 1732-1741.

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Modern nonintrusive techniques are used to make skin-friction and heat transfer measurements in two shockwave/turbulent boundary-layer interactions (SWTBLIs). The two-dimensional SWTBLI is generated by impingement of an incident oblique shock wave on a flat-plate boundary layer. The three-dimensional SWTBLI results from the interaction of the swept shock generated by a fin with a flat-plate boundary layer. The measurements are made using the global interferometry skin-friction technique for the skin friction and the quantitative infrared thermography technique for the heat transfer rate. The results show that, for the two- and three-dimensional interactions, there is a clear difference in the behavior of skin friction and heat transfer as the strength of the shock is changed. This observation suggests that the analogy between momentum and heat transfer, which is the basis of many simplified physical models, is not valid in SWTBLIs. These new data supplement the previous measurements that include boundary-layer properties, surface pressure distributions, and patterns of the limiting streamlines. Taken together, these data complete a data set that is suited for computational fluid dynamics validation.

Item URL in elib:https://elib.dlr.de/21730/
Document Type:Article
Title:Skin Friction and Heat Flux Measurements in Shock Boundary Layer Interaction Flows
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Date:August 2006
Journal or Publication Title:AIAA Journal
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In ISI Web of Science:Yes
Page Range:pp. 1732-1741
Keywords:Experiment, Supersonic, Turbulent, Boundary Layer, Shock Wave, Measurement, Heat Flux, Skin Friction, GISF, QIRT, Oil Film Interferometry
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Aeronautics
HGF - Program Themes:Aircraft Research (old)
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: Schülein, Dr.rer.nat. Erich
Deposited On:05 Jan 2007
Last Modified:27 Apr 2009 04:56

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