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Launch Vehicle Base Buffeting - Recent Experimental and Numerical Investigations

Hannemann, Klaus and Lüdeke, Heinrich and Pallegoix, Jean-Francois and Ollivier, Arnaud and Lambaré, Hadrien and Maseland, Hans and Geurts, E. G. M. and Frey, Manuel and Deck, Sebastien and Schrijer, F.F.J. and Scarano, F. and Schwane, Richard (2011) Launch Vehicle Base Buffeting - Recent Experimental and Numerical Investigations. 7th European Symposium on Aerothermodynamics for Space Vehicles, 2011-05-09 - 2011-05-12, Brugge, Belgien.

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Abstract

During atmospheric ascent of launcher configurations, a massively separated flow environment in the base region of the launcher can generate strong low frequency wall pressure fluctuations. The nozzle structure can be subjected to dynamic loads resulting from these pressure fluctuations. The loads are usually most severe during the high dynamic pressure phase of flight at transonic speeds and the aerodynamic excitation can induce a response of the structural modes called buffeting. In order to obtain a deeper insight into base buffeting related to the Ariane 5 launch vehicle, a set of experiments was performed in the DNW HST wind tunnel in close cooperation with the utilization of modern CFD tools (hybrid RANS/LES). During the test campaign a 1/60 scale Ariane 5 launcher test article was utilized, and detailed unsteady pressure measurements in the base region of the model were for the first time performed in conjunction with time resolved velocity field measurements using PIV. The work was performed in the framework of the ESA TRP “Unsteady Subscale Force Measurements within a Launch Vehicle Base Buffeting Environment”.

Item URL in elib:https://elib.dlr.de/71367/
Document Type:Conference or Workshop Item (Speech)
Title:Launch Vehicle Base Buffeting - Recent Experimental and Numerical Investigations
Authors:
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Hannemann, KlausUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Lüdeke, HeinrichUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Pallegoix, Jean-FrancoisEADS Astrium, Les MureauxUNSPECIFIEDUNSPECIFIED
Ollivier, ArnaudEADS Astrium, Les MureauxUNSPECIFIEDUNSPECIFIED
Lambaré, HadrienCNESUNSPECIFIEDUNSPECIFIED
Maseland, HansNLRUNSPECIFIEDUNSPECIFIED
Geurts, E. G. M.NLRUNSPECIFIEDUNSPECIFIED
Frey, ManuelEADS Astrium, MünchenUNSPECIFIEDUNSPECIFIED
Deck, SebastienONERAUNSPECIFIEDUNSPECIFIED
Schrijer, F.F.J.TU DelftUNSPECIFIEDUNSPECIFIED
Scarano, F.TU DelftUNSPECIFIEDUNSPECIFIED
Schwane, RichardESTEC-ESAUNSPECIFIEDUNSPECIFIED
Date:2011
Refereed publication:No
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Series Name:Conference Proceedings
Status:Published
Keywords:CFD, Experiment, Launcher Base Flow, Buffeting Reduction
Event Title:7th European Symposium on Aerothermodynamics for Space Vehicles
Event Location:Brugge, Belgien
Event Type:international Conference
Event Start Date:9 May 2011
Event End Date:12 May 2011
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Space Transportation
DLR - Research area:Raumfahrt
DLR - Program:R RP - Space Transportation
DLR - Research theme (Project):R - Raumfahrzeugsysteme - Anlagen u. Messtechnik (old)
Location: Göttingen
Institutes and Institutions:Institute of Aerodynamics and Flow Technology > Spacecraft
Deposited By: Brennecke-Hosseinzadeh, Dagmar
Deposited On:21 Nov 2011 13:49
Last Modified:24 Apr 2024 19:36

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