3D Unsteady numerical investigation of an overexpanded thrust optimized contour nozzle

  • A. Shams*
  • , P. Comte
  • , S. Girard
  • , G. Lehnasch
  • , M. F. Shahab
  • *Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

2 Scopus citations

Abstract

A numerical study of three-dimensional unsteady separated turbulent flow in an overexpanded Truncated-Optimized Contour nozzle, denoted LEATOC, is undertaken to predictthe accurate separation point location and the downstream mean wall pressure and to better understand the flow phenomenon. Two different turbu-lence modelling methods are assessed; a Wilcox standard k -ωRANS model with realizability correction, and its Detached-Eddy Simulation (DES) extension. With regards to the separation point location and downstream mean wall pressure, the presented unsteady RANS and DES approaches both give results in good agreement with the provided experimental data.

Original languageEnglish
Title of host publicationProceedings of the 6th European Symposium on Aerothermodynamics for Space Vehicles
StatePublished - 2009
Externally publishedYes
Event6th European Symposium Aerothermodynamics for Space Vehicles - Versailles, France
Duration: 3 Nov 20086 Nov 2008

Publication series

NameEuropean Space Agency, (Special Publication) ESA SP
Volume659 SP
ISSN (Print)0379-6566

Conference

Conference6th European Symposium Aerothermodynamics for Space Vehicles
Country/TerritoryFrance
CityVersailles
Period3/11/086/11/08

Keywords

  • Overexpanded
  • Separation point
  • Side loads
  • Turbulence

ASJC Scopus subject areas

  • Aerospace Engineering
  • Space and Planetary Science

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