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Large-Eddy Simulations of Compressible Shear Flows

  • P. Comte
Conference paper
Part of the Fluid Mechanics and its Applications book series (FMIA, volume 54)

Abstract

LES of compressible boundary layers performed with a variable-density extension of the filtered and selective structure-function models presented in Lesieur & Métais, 1996, Ann. Rev. Fluid Mech., 28, 45–82). Quasi-incompressible transitional boundary layers show the establishement of a streak system of spanwise spacing ~ 100w.u. well upstream of the peak of skin friction, which bolsters up the expanations in terms of algebraic instabilities (e.g. Landahl, 1980, J. Fluid Mech., 98, 243–251). A supersonic compression-ramp flow is found to develop Dean-Görtler vortices with intense and quasi-steady spanwise fluctuations of wall heat-flux.

Keywords

Compressible Shear Compressible Boundary Layer Compression Ramp Parabolized Stability Equation Spanwise Spacing 
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 Science+Business Media Dordrecht 1999

Authors and Affiliations

  • P. Comte
    • 1
    • 2
  1. 1.LEGI/IMGGrenoble cedex 9France
  2. 2.IMFStrasbourgFrance

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