Compressible boundary layer predictions at high Reynolds number using hybrid LES/RANS methods

Jung Il Choi, Jack R. Edwards, Robert A. Baurle

Research output: Chapter in Book/Report/Conference proceedingConference contribution

10 Citations (Scopus)

Abstract

Simulations of compressible boundary layer flow at three different Reynolds numbers (Reδ = 5.59×104, 1.78×105, and 1.58×106) are performed using a hybrid large-eddy/Reynolds- averaged Navier-Stokes method. Variations in the recycling/rescaling method, the higher-order extension, the choice of primitive variables, the RANS/LES transition parameters, and the mesh resolution are considered in order to assess the model. The results indicate that the present model can provide good predictions of the mean flow properties and second-moment statistics of the boundary layers considered. Normalized Reynolds stresses in the outer layer are found to be independent of Reynolds number, similar to incompressible turbulent boundary layers.

Original languageEnglish
Title of host publication38th AIAA Fluid Dynamics Conference and Exhibit
PublisherAmerican Institute of Aeronautics and Astronautics Inc.
ISBN (Print)9781563479427
DOIs
Publication statusPublished - 2008

Publication series

Name38th AIAA Fluid Dynamics Conference and Exhibit

All Science Journal Classification (ASJC) codes

  • Engineering(all)

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    Choi, J. I., Edwards, J. R., & Baurle, R. A. (2008). Compressible boundary layer predictions at high Reynolds number using hybrid LES/RANS methods. In 38th AIAA Fluid Dynamics Conference and Exhibit [2008-4175] (38th AIAA Fluid Dynamics Conference and Exhibit). American Institute of Aeronautics and Astronautics Inc.. https://doi.org/10.2514/6.2008-4175