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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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Abstract

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
Authors:
AuthorsInstitution or Email of Authors
Schrijer, F.F.J.Universität Delft
Sciacchitano, A.Universität Delft
Scarano, FluvioUniversität Delft
Hannemann, Klausklaus.hannemann@dlr.de
Pallegoix, Jean-FrancoisAstrium, Les Mureaux
Maseland, J.E.J.NLR
Schwane, RichardESTEC-ESA
Date:2011
Refereed publication:No
In SCOPUS:No
In ISI Web of Science:No
Series Name:Conference Proceedings
Status:Published
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
Organizer:ESA
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 - Anlagen u. Messtechnik
Location: Göttingen
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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