Spatio-temporal spectra in the logarithmic layer of wall turbulence: large-eddy simulations and simple models

@inproceedings{Wilczek2015SpatiotemporalSI,
  title={Spatio-temporal spectra in the logarithmic layer of wall turbulence: large-eddy simulations and simple models},
  author={Michael Wilczek and Richard J. A. M. Stevens and Charles Meneveau},
  year={2015}
}
Motivated by the need to characterize the spatio-temporal structure of turbulence in wall-bounded flows, we study wavenumber–frequency spectra of the streamwise velocity component based on large-eddy simulation (LES) data. The LES data are used to measure spectra as a function of the two wall-parallel wavenumbers and the frequency in the equilibrium (logarithmic) layer. We then reformulate one of the simplest models that is able to reproduce the observations: the random sweeping model with a… CONTINUE READING

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