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Simulation of Streamwise Vortices on Turbulent Hypersonic Ramps

Lüdeke, H. and Schülein, E. (2002) Simulation of Streamwise Vortices on Turbulent Hypersonic Ramps. 2nd International Conference on Computational Fluid Dynamics, Sydney (aus), 15.-19.07.2002.

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Abstract

Purpose of this investigation is the simulation of separated turbulent ramp flow as a simple generic model for re-entry vehicle flaps under threedimensional disturbances. Parametervariations of crossflow, disturbance intensity and wavelength of the disturbances are tested. Comparison with wind tunnel data from the Ludwieg tube facility in Göttingen (RWG) was used to validate the numerical code and getting a deeper insight into the flow topology. The dependence of the vortices from surface disturbances and a tendency to circular vortex shape at reattachment has been shown experimentally and numerically in good agreement. Finally a damping influence of crossflow in the separation region was investigated.

Document Type:Conference or Workshop Item (Paper)
Additional Information: LIDO-Berichtsjahr=2003,
Title:Simulation of Streamwise Vortices on Turbulent Hypersonic Ramps
Authors:
AuthorsInstitution or Email of Authors
Lüdeke, H.UNSPECIFIED
Schülein, E.UNSPECIFIED
Date:2002
Status:Published
Keywords:Hypersonic Ramp, Streamwise vortices, crossflow, Re-entry vehicles, RWG, deflected flaps, separated flow
Event Title:2nd International Conference on Computational Fluid Dynamics, Sydney (aus), 15.-19.07.2002
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):W - Grundlagen Raumtransport - Anlagen und Messtechnik (old)
Location: Köln-Porz , Braunschweig , Göttingen
Institutes and Institutions:Institute of Aerodynamics and Flow Technology
Deposited By: Claudia Grant
Deposited On:31 Jan 2006
Last Modified:14 Jan 2010 19:06

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