Cylinder Experiments in the High Enthalpy Tunnel HEG
Hakenesch, P. and Carl, M. and Kastell, D. and Eitelberg, G. (1996) Cylinder Experiments in the High Enthalpy Tunnel HEG. DLR-Interner Bericht. 223-96 A 06, 52 S.
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Fourteen cylinder experiments in the HEG under high enthalpy conditions habe been carried out for four different free-stream conditions in air and one free-stream condition in nitrogen. Schlieren, interferogram and luminosity pictures were obtained. Interferograms have been used to determine the density distribution on the stagnation streamline. The density profile on the stagnation streamline has been compared to results from Navier-Stokes calculations. The sshock wave stand-off distance has been determined using these optical measurements and compared to the shock wave stand-off distance for the ideal gas case. The distance was found to be between the frozen and the equilibrium limit, even though data varies from measurement to measurement technique. At the wall of the cylinder 18 pressure and 17 thermocouple sensors have been installed at five degree steps from -40 to 40 degree relative to the free-stream flow direction.
|Document Type:||Monograph (DLR-Interner Bericht)|
|Title:||Cylinder Experiments in the High Enthalpy Tunnel HEG|
|Journal or Publication Title:||ESA Contract 10093/92/F/FC Lot No. 2, Evenement No. 2|
|Number of Pages:||52|
|Keywords:||High-enthalpy non-equilibrium cylinder flow, Schlieren, interferogram shock stand-off, density distribution, wall pressure, wall heat transfer|
|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|
|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 10:08|
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