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Eulerian and Lagrangian statistics in homogeneous stratified flows

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Abstract

The present work follows previous modelling efforts of homogeneous stratified turbulence, using a statistical Eulerian model, with a high level of description of anisotropy, and a kinematic simulation model for computing Lagrangian dispersion properties of turbulence. Here, both approaches are coupled, yielding results for the dispersion of a single passive particle. The first results obtained by our model qualitatively agree well with the one-particle dispersion ones obtained from Large Eddy Simulations of stationary stratified turbulence.

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Abbreviations

EDQNM:

Eddy Damped Quasi Normal Markovian

KS:

Kinematic Simulation

DNS:

Direct Numerical Simulation

RDT:

Rapid Distortion Theory

LES:

Large Eddy Simulation

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Author notes

  1. N. A. Malik

    Present address: DAMTP, University of Cambridge, U.K.

Authors and Affiliations

  1. LMFA UMR CNRS 5509, Ecole Centrale de Lyon, Ecully Cédex, France

    F. S. Godeferd, N. A. Malik & C. Cambon

  2. DAMTP, University of Cambridge, U.K.

    F. Nicolleau

Authors
  1. F. S. Godeferd
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  2. N. A. Malik
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  3. C. Cambon
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  4. F. Nicolleau
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Godeferd, F.S., Malik, N.A., Cambon, C. et al. Eulerian and Lagrangian statistics in homogeneous stratified flows. Appl. Sci. Res. 57, 319–335 (1996). https://doi.org/10.1007/BF02506067

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  • DOI: https://doi.org/10.1007/BF02506067

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