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Manipulation of shock/boundary layer interactions in hypersonic inlets

Schulte, D. and Henckels, A. and Neubacher, R. (1999) Manipulation of shock/boundary layer interactions in hypersonic inlets. In: Fourteenth International Symposium on Air Breathing Engines. Fourteenth International Symposium on Air Breathing Engines, Florence/Italy, 05.-10. September 1999.

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Abstract

Possibilities to manipulate shock/boundary layer interactions are demonstrated with regard to an application for hypersonic inlets. Experiments on generic models have been carried out in the hypersonic wind tunnel H2K of DLR at Mach number 6 and laminar flow conditions. Experimental results were validated by numerical flow simulations using a 2D finite element scheme. An analytical method has been developed for the pre-design of bleed configurations. In case of shock induced boundary layer separation it could be shown, that the implementation of bleed leads to a reduction of the separation bubble thickness by almost 50%. Further experimental investigations dealt with the achivable reduction of the heat loads on the wall surface depending on the amount and the position of the boundary layer bleed. These examinations were extended to three-dimensional corner flows. By this, favorable design parameters for a boundary layer bleed set-up were found. Finally, the results obtained using the generic models were transferred to a hypersonic inlet model. There the application of a correctly designed and positioned bleed system showed a significant increase of the attainable total pressure recovery

Document Type:Conference or Workshop Item (Paper)
Additional Information: LIDO-Berichtsjahr=1999,
Title:Manipulation of shock/boundary layer interactions in hypersonic inlets
Authors:
AuthorsInstitution or Email of Authors
Schulte, D.UNSPECIFIED
Henckels, A.UNSPECIFIED
Neubacher, R.UNSPECIFIED
Date:1999
Journal or Publication Title:Fourteenth International Symposium on Air Breathing Engines
Editors:
EditorsEmail
P. J. Waltrup American Institute of Aeronautics and Astronautics 1801 Alexander Bell Drive, Suite 500, Reston, VA 20191-4344, UNSPECIFIED
Series Name:ISABE 99-7038
Status:Published
Keywords:shock/boundary layer, hypersonic inlets
Event Title:Fourteenth International Symposium on Air Breathing Engines, Florence/Italy, 05.-10. September 1999
Organizer:American Institute of Aeronautics and Astronautics
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Space (old)
HGF - Program Themes:W RP - Raumtransport
DLR - Research area:Space
DLR - Program:W RP - Raumtransport
DLR - Research theme (Project):UNSPECIFIED
Location: Köln-Porz , Braunschweig , Göttingen
Institutes and Institutions:Institute of Aerodynamics and Flow Technology > Institut für Strömungsmechanik
Deposited By: elib DLR-Beauftragter
Deposited On:16 Sep 2005
Last Modified:14 Jan 2010 20:43

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