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Experimental Investigation of Shock on Shock Interactions in the High Enthalpy Shock Tunnel Goettingen (HEG).

Kortz, S. and Mc Intyre, T.J. (1) and Eitelberg, G. (1993) Experimental Investigation of Shock on Shock Interactions in the High Enthalpy Shock Tunnel Goettingen (HEG). In: Proc. 19th Int. Symp. on Shock Waves. 19th International Symp. on Shock Waves, Marseille, July 1993.

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Abstract

The outcome of an experimental investigation of Shock on Shock Interactions, created when an oblique shock impinges on a bow shock formed in front of a circular cylinder in a high enthalpy flow of 20 MJ/kg is presented. This interaction is known as Edney type of interaction. The current study concentrated on Edney types III and IV, where the real gas dissociation effect results in the bow shock being much closer to the cylinder than in case of a perfect gas at the same incident flow Mach number. Flow field pictures as well as pressure and heat transfer distributions on the cylinder are shown. The jet flow behind the bow shock, typical for the type IV interaction, was not observed and the peak pressure and heat loads are much less severe than was expected from the previous ideal gas investigation. Under the investigated flow conditions, the type III interaction can lead to heat transfer and pressure loads as high as those observed for the type IV interaction.

Document Type:Conference or Workshop Item (Paper)
Additional Information: LIDO-Berichtsjahr=1993, pages=6,
Title:Experimental Investigation of Shock on Shock Interactions in the High Enthalpy Shock Tunnel Goettingen (HEG).
Authors:
AuthorsInstitution or Email of Authors
Kortz, S.UNSPECIFIED
Mc Intyre, T.J. (1)UNSPECIFIED
Eitelberg, G.UNSPECIFIED
Date:1993
Journal or Publication Title:Proc. 19th Int. Symp. on Shock Waves
Status:Published
Keywords:Shock/Shock Interactions, Experimental Investigation, High Enthalpy, Real gas dissociation effect, nonequilibrium, Shock tunnel, Pressure, Heat transfer, Interferogram
Event Title:19th International Symp. on Shock Waves, Marseille, July 1993
HGF - Research field:UNSPECIFIED
HGF - Program:other
HGF - Program Themes:other
DLR - Research area:UNSPECIFIED
DLR - Program:no assignment
DLR - Research theme (Project):UNSPECIFIED
Location: Köln-Porz , Braunschweig , Göttingen
Institutes and Institutions:Institute of Aerodynamics and Flow Technology > Institut für Strömungsmechanik > Institut für Experimentelle Strömungsmechanik
Deposited By: elib DLR-Beauftragter
Deposited On:03 Apr 2006
Last Modified:27 Apr 2009 10:07

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