Feasibility of Hybrid RANS-LES Modeling of Shock/Boundary-Layer Interaction in a Duct

Part of the Notes on Numerical Fluid Mechanics and Multidisciplinary Design book series (NNFM, volume 117)

Abstract

A shock induced boundary-layer separation (SBLI) occurring in a duct at M = 1.4 has been analyzed using hybrid RANS-LES methods. The shock wave interacts with the turbulent wall boundary layers and triggers flow separation in the duct corners. The main purpose of the present work is to highlight the difficulties in modeling SBLI, particularly, when hybrid RANS-LES models are used. Results computed using different turbulence models are presented and discussed in comparison with available experimental data. Based on a number of simulations, some issues are addressed and some critical remarks are provided for potential improvements using turbulence-resolving modeling approaches in future work.

Keywords

Shock Wave Coarse Grid Separation Bubble Shock Location Recirculation Bubble 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag Berlin Heidelberg 2012

Authors and Affiliations

  • Sebastian Arvidson
    • 1
    • 2
  • Shia-Hui Peng
    • 1
    • 3
  • Lars Davidson
    • 1
  1. 1.Dept. of Applied MechanicsChalmers University of TechnologyGothenburgSweden
  2. 2.Saab AeronauticsLinköpingSweden
  3. 3.Swedish Defence Research Agency (FOI)StockholmSweden

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