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Transitional shock/boundary-layer interaction on control surfaces of the IXV configuration

Neeb, Dominik and Gülhan, Ali (2012) Transitional shock/boundary-layer interaction on control surfaces of the IXV configuration. In: RTO-MP-AVT-200 . NATO AVT- Specialists’ Meeting on Hypersonic Laminar-Turbulent Transition, 16. - 19. April 2012, San Diego, USA.

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Abstract

In the framework of the ESA FLPP program an experimental investigation of the aerothermodynamic phenomena on the IXV configuration during reentry phase has been conducted in the hypersonic wind tunnel H2K at DLR Cologne. To study the control behavior of the vehicle with flaps at different flight conditions, a variation of the flap deflection and the angle of attack have been applied. Tests have been carried out at Mach 8.7 and three different Reynolds number steps. Besides natural transition special devices were used on the model to trip the boundary layer. The test duration was up to 20 seconds. The model is made of a material with low thermal conductivity in order to measure the surface temperature distribution by means of IR thermography and to avoid any lateral heat dissipation inside the structure. Using this data the heat flux rate has been determined taking into account temperature-dependent material characteristics, assuming a semi infinite wall and radiative cooling to the environment. The flow topology has been analyzed using Schlieren images.

Document Type:Conference or Workshop Item (Speech, Paper)
Title:Transitional shock/boundary-layer interaction on control surfaces of the IXV configuration
Authors:
AuthorsInstitution or Email of Authors
Neeb, DominikDominik.Neeb@dlr.de
Gülhan, AliAli.Gülhan@dlr.de
Date:April 2012
Journal or Publication Title:RTO-MP-AVT-200
Status:Published
Keywords:Hypersonics, IXV, Transition, H2K, shock-shock interaction, shock-wave boundary layer interaction
Event Title:NATO AVT- Specialists’ Meeting on Hypersonic Laminar-Turbulent Transition
Event Location:San Diego, USA
Event Type:international Conference, Workshop
Event Dates:16. - 19. April 2012
Organizer:NORTH ATLANTIC TREATY ORGANISATION
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Space Transport
DLR - Research area:Raumfahrt
DLR - Program:R RP - Raumtransport
DLR - Research theme (Project):R - Raumfahrzeugsysteme - Rückkehrtechnologie
Location: Köln-Porz
Institutes and Institutions:Institute of Aerodynamics and Flow Technology > Über- und Hyperschalltechnologien
Deposited By: Dominik Neeb
Deposited On:14 Nov 2012 09:42
Last Modified:14 Nov 2012 09:42

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