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Prediction of Transonic Duct Flow Using a Zonal Hybrid RANS-LES Modeling Approach

  • Sebastian ArvidsonEmail author
  • Shia-Hui Peng
  • Lars Davidson
Conference paper
Part of the Notes on Numerical Fluid Mechanics and Multidisciplinary Design book series (NNFM, volume 130)

Abstract

Transonic duct flow with shock/boundary-layer interaction (SBLI) was analyzed using a zonal hybrid RANS-LES approach. The proposed zonal approach simulates the attached boundary layer flow, prior to the SBLI region in RANS mode. At a prescribed streamwise location, upstream of the SBLI region, the model switches to its hybrid RANS-LES mode over a buffer zone in order to avoid possible discontinuities. The corner separation bubbles, induced by the shock at M = 1.4, were mostly simulated in LES mode in order to improve the SBLI flow prediction. In addition to comparisons with experimental data, the zonal approach is compared to simulations using the SA-DDES and SA-IDDES model. The zonal approach predicted a corner separation bubble and a \(\lambda \)-shape shock which is in good agreement with experimental data. Furthermore, the predicted pressure rise across the shock agrees reasonably well with the experiment.

Keywords

Turbulent Viscosity Cross Flow Outlet Pressure Shock Intensity Shock Location 
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.

Notes

Acknowledgments

This work was funded by the Swedish Governmental Agency for Innovation Systems (VINNOVA) in the Swedish National Flight Research Program (NFFP, Contract No. 2009-01346 and 2013-01209) and Saab Aeronautics with support from the EU project ATAAC, Contract No. 233710. Computational resources were supported by the Swedish National Infrastructure for Computing (SNIC).

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Copyright information

© Springer International Publishing Switzerland 2015

Authors and Affiliations

  • Sebastian Arvidson
    • 1
    • 2
    Email author
  • Shia-Hui Peng
    • 1
    • 3
  • Lars Davidson
    • 1
  1. 1.Division of Fluid DynamicsChalmers University of TechnologyGothenburgSweden
  2. 2.Saab AeronauticsLinköpingSweden
  3. 3.Swedish Defence Research Agency (FOI)StockholmSweden

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