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Spectral closures to derive a subgrid scale modeling for large eddy simulations

  • Jean-Pierre Chollet
Conference paper
Part of the Lecture Notes in Physics book series (LNP, volume 230)

Abstract

Spectral two-point closures are used to derive a subgrid scale model for large eddy simulations of velocity and passive scalar fields of fully developed three-dimensional isotropic turbulence. This model is a “full coupling” of explicit calculations of large scales and statistical evolutions of small scales. It can be simplified into a formalism of eddy-viscosity and eddy diffusivity. The predictability of the large scales is impaired by the growth of errors which can appear in small scales ; this error-growth is studied by comparing two realizations of the velocity field.

Keywords

Large Eddy Simulation Eddy Viscosity Statistical Closure Isotropic Turbulence Error Growth 
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 1985

Authors and Affiliations

  • Jean-Pierre Chollet
    • 1
  1. 1.Institut de Mécanique de GrenobleSaint-Martin d'Hères Cedex

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