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Three-Dimensional Instability of Shock-Wave/Boundary-Layer Interaction for Rocket Engine Nozzle Applications

  • J.-Ch. Robinet
  • A. SansicaEmail author
  • Eric Goncalves
  • J. Herpe
Conference paper

Abstract

A fully three-dimensional analysis is carried out on an overexpanded rocket engine nozzle configuration to investigate the role of the internal shock-induced separation on the mechanism of generation of side loads during start-up and shutdown transients. A hybrid URANS/LES approach based on the delayed detached eddy simulation turbulence model is used. Reasonable good agreement is obtained between numerical and experimental results. The numerical wall-pressure spectrum shows a narrow peak that a dynamic mode decomposition reveals to be associated with a mode whose characteristics resemble the experimental azimuthal mode believed to be the cause of the generation of side loads.

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Copyright information

© Springer International Publishing AG, part of Springer Nature 2019

Authors and Affiliations

  • J.-Ch. Robinet
    • 1
  • A. Sansica
    • 1
    • 2
    Email author
  • Eric Goncalves
    • 3
  • J. Herpe
    • 2
  1. 1.DynFluid Laboratory, Arts et Métiers ParisTech, 151 Boulevard de l’HôpitalParisFrance
  2. 2.Centre National d’Études Spatiales (CNES) – Direction des LanceursParisFrance
  3. 3.ENSMA, Institut Pprime, UPR 3346, CNRS, Chasseneuil-du-PoitouChasseneuilFrance

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