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

Jung Il Choi, Edwards Jack, Robert A. Baurle

Research output: Contribution to journalArticlepeer-review

56 Citations (Scopus)


Simulations of compressible boundary-layer flow at three different Reynolds numbers (Re δ 5:59 × 10 4, 1:78 × 10 5, and 1:58 Times; 10 6) are performed using a hybrid large-eddy simulation/Reynolds-averaged Navier-Stokes method. Variations in the recycling/rescaling method, the higher order extension, the choice of primitive variables, the Reynolds-averaged Navier-Stokes to large eddy simulation 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, second-moment statistics, and structural features of the boundary layers considered. Normalized turbulent statistics in the outer layer are found to be independent of Reynolds number, similar to incompressible turbulent boundary layers.

Original languageEnglish
Pages (from-to)2179-2193
Number of pages15
JournalAIAA journal
Issue number9
Publication statusPublished - 2009 Sept

Bibliographical note

Funding Information:
This work is supported by NASA under Cooperative Agreement NNX07AC27A-S01. Computer resources have been provided by the High Performance Computing component of North Carolina State University’s Information Technology division.

All Science Journal Classification (ASJC) codes

  • Aerospace Engineering


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