Experimental Investigation of Base Flow Buffeting on the ARIANE 5 Launcher Using High Speed PIV
Schrijer, F.F.J. and Sciacchitano, A. and Scarano, Fluvio and Hannemann, Klaus and Pallegoix, Jean-Francois and Maseland, J.E.J. and Schwane, Richard (2011) Experimental Investigation of Base Flow Buffeting on the ARIANE 5 Launcher Using High Speed PIV. 7th European Symposium on Aerothermodynamics for Space Vehicles, 9.Mai - 12. Mai 2011, Brugge, Belgien.
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Experiments have been performed on a 1:60 scale Ariane 5 launcher in the DNW HST wind tunnel by means of two-component particle image velocimetry (2C-PIV). Measurements are performed for Mach 0.5 and Mach 0.8. The investigation focuses on studying the flow-buffeting phenomenon in the base of an Ariane V rocket. In total four configurations are tested: reference configuration, skirt, scoop and reference configuration without struts. It has been found that the presence of the struts has a large effect on the flow field; the secondary flow caused by the struts decreases the separated region and increases the overall turbulence. The skirt has the effect that the shear layer separates later and therefore does not reattach on the nozzle. Also in the separated region a secondary recirculation region is formed. For the scoop configuration it was observed that a second wake was formed by the scoop element causing the overall shear layer to become thicker. Finally using POD analysis two dominant modes are identified that can be associated to the separation bubble and shear layer dynamics.
|Document Type:||Conference or Workshop Item (Speech, Paper)|
|Title:||Experimental Investigation of Base Flow Buffeting on the ARIANE 5 Launcher Using High Speed PIV|
|In ISI Web of Science:||No|
|Series Name:||Conference Proceedings|
|Keywords:||Unsteady flows, Transonic buffeting, Rocket base flow, High-speed particle image velocimetry (PIV)|
|Event Title:||7th European Symposium on Aerothermodynamics for Space Vehicles|
|Event Location:||Brugge, Belgien|
|Event Type:||international Conference|
|Event Dates:||9.Mai - 12. Mai 2011|
|HGF - Research field:||Aeronautics, Space and Transport|
|HGF - Program:||Raumfahrt|
|HGF - Program Themes:||R RP - Raumtransport|
|DLR - Research area:||Raumfahrt|
|DLR - Program:||R RP - Raumtransport|
|DLR - Research theme (Project):||R - Raumfahrzeugsysteme - Anlagen u. Messtechnik|
|Institutes and Institutions:||Institute of Aerodynamics and Flow Technology > Spacecraft|
|Deposited By:||Dagmar Brennecke-Hosseinzadeh|
|Deposited On:||21 Nov 2011 13:46|
|Last Modified:||18 Jan 2012 11:58|
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