Experimental Studies of Hypersonic Shock Induced Boundary Layer Separation.
Kreins, A.F. and Henckels, A. and Maurer, F. (1996) Experimental Studies of Hypersonic Shock Induced Boundary Layer Separation. ZFW Zeitschrift f. Flugwissenschaften und Weltraumforschung 20 (1996), Heft 2, pp. 80-88. Springer-Verlag, Berlin.
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Previous experimental investigations of shock boundary layer interactions on a flat plate at free stream Mach numbers between 6 and 8.7 revealed longitudinal counter-rotating vortices downstream of the interaction region. In subsequent studies the influence of nose radius of blunted plates and of wall curvature on the formation of the vortices was investigated. The experiments were carried out in the hypersonic blow down facility of DLR Cologne. The diagnostics included surface oil flow visualization, infrared thermography, Pitot pressure measurements and Schlieren optics. First numerical results obtained by other authors working in the same research program showed persuasive agreement with the experimentally observed vortex structures, in particular with respect to their diameter and the number of vortex pairs. In the comparison the experimental Schlieren images were also reproduced with good accuracy by the numerically simulated images, obtained from computed density distributions. The numerical flow predictions verified a second flow recirculation inside the separation region, the existence of which had to be postulated by the experimental results.
|Title:||Experimental Studies of Hypersonic Shock Induced Boundary Layer Separation.|
|Journal or Publication Title:||ZFW Zeitschrift f. Flugwissenschaften und Weltraumforschung 20 (1996), Heft 2|
|In ISI Web of Science:||Yes|
|Page Range:||pp. 80-88|
|Keywords:||Hyperschall, Stoss-Grenzschicht-Wechselwirkung, Infrarot-Thermographie.|
|HGF - Research field:||UNSPECIFIED|
|HGF - Program:||Space|
|HGF - Program Themes:||W RP - Raumtransport|
|DLR - Research area:||UNSPECIFIED|
|DLR - Program:||W RP - Raumtransport|
|DLR - Research theme (Project):||UNSPECIFIED|
|Institutes and Institutions:||Institute of Aerodynamics and Flow Technology > Supersonic and Hypersonic Technology|
|Deposited By:||elib DLR-Beauftragter|
|Deposited On:||02 Apr 2006|
|Last Modified:||27 Apr 2009 05:30|
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