Numerical/Experimental Investigation of a Wedge-Compression Corner with Gap-Flow under Cold-Hypersonic Gas Conditions
Dujardin, A. and Gülhan, A. and Longo, J.M.A. and Mack, A. (2001) Numerical/Experimental Investigation of a Wedge-Compression Corner with Gap-Flow under Cold-Hypersonic Gas Conditions. 4th Symposium on Aerothermodynamics for Space Vehicles, Capua (it), 14.-18.10.2001.
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A numerical/experimental investigation performed at DLR for a wedge-compression corner without and with gap-flow between the flat plate and a 15 deg. wedge at cold-hypersonic flow condition, Mach 5.3, is presented and discussed. The goal of the study is to provide with first insights on the impact that a failure of a gap-seal has on the efficiency and maximum heating of a control surface. The experimental results are obtained in the cold-hypersonic wind tunnel H2K of DLR-Cologne. The numerical results are obtained with the DLR computer code TAU. The present investigation shows that a failure of the hinge-line seal does not promote an important increase of control surface efficiency and overall flap-surface heating but the flap leading-edge may be severe impacted due to the bad combination of shock stands point location and small leading-edge radius.
|Document Type:||Conference or Workshop Item (Paper)|
|Title:||Numerical/Experimental Investigation of a Wedge-Compression Corner with Gap-Flow under Cold-Hypersonic Gas Conditions|
|Keywords:||Hypersonic, CFD, Wind tunnel, control surfaces, gap flows|
|Event Title:||4th Symposium on Aerothermodynamics for Space Vehicles, Capua (it), 14.-18.10.2001|
|HGF - Research field:||Aeronautics, Space and Transport|
|HGF - Program:||Space|
|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 18:53|
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