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A Fluid Structure Coupling of the Ariane-5 During Start Phase by DES

Lüdeke, Heinrich and Calvo, Javier, B. (2008) A Fluid Structure Coupling of the Ariane-5 During Start Phase by DES. 6th European Symposium on Aerothermodynamics for Space Vehicles, 3.-6. Nov. 2008, Versailles, France.

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Abstract

Concerning the requirements of future rocket technologies, which are the cost-efficient access to orbit as well as an increase in system reliability, a deeper insight into the unsteady phenomena during ascent of modern launchers is essential. Especially unsteady interactions and resonances of flow separation inside the nozzle, the turbulent launcher wake and the nozzle structure play an important role for the design of future main stage propulsion systems. The so called buffeting coupling phenomenon is one of the main challenges during ascent. In the present study of the Ariane-5 launcher a coupled simulation of the afterbody with a realistic structural and aerodynamic representation of different nozzle configurations is carried out using unsteady Detached Eddy Simulations on the CFD side, coupled with second order structural computations for different nozzle configurations. The essential features of the interaction process are well captured.

Document Type:Conference or Workshop Item (Paper)
Title:A Fluid Structure Coupling of the Ariane-5 During Start Phase by DES
Authors:
AuthorsInstitution or Email of Authors
Lüdeke, Heinrichheinrich.luedeke@dlr.de
Calvo, Javier, B.javier.bartolomecalvo@dlr.de
Date:November 2008
Status:Published
Keywords:DES; bufeting coupling; Ariane; Nozzle
Event Title:6th European Symposium on Aerothermodynamics for Space Vehicles
Event Location:Versailles, France
Event Type:international Conference
Event Dates:3.-6. Nov. 2008
Organizer:ESA
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 - Leitprojekt - Propulsion 2010 / CFD und Simulation (old)
Location: Braunschweig
Institutes and Institutions:Institute of Aerodynamics and Flow Technology > Spacecraft
Deposited By: Dr.-Ing. Heinrich Lüdeke
Deposited On:15 Feb 2010 13:33
Last Modified:12 Dec 2013 20:54

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