English

Generation of small-scale structures in the developed turbulence

Fluid Dynamics 2009-11-13 v1

Abstract

The Navier-Stokes equation for incompressible liquid is considered in the limit of infinitely large Reynolds number. It is assumed that the flow instability leads to generation of steady-state large-scale pulsations. The excitation and evolution of the small-scale turbulence is investigated. It is shown that the developed small-scale pulsations are intermittent. The maximal amplitude of the vorticity fluctuations is reached along the vortex filaments. Basing on the obtained solution, the pair correlation function in the limit r0r\to 0 is calculated. It is shown that the function obeys the Kolmogorov law r2/3r^{2/3}.

Keywords

Cite

@article{arxiv.physics/0612131,
  title  = {Generation of small-scale structures in the developed turbulence},
  author = {K. P. Zybin and V. A. Sirota and A. S. Ilyin and A. V. Gurevich},
  journal= {arXiv preprint arXiv:physics/0612131},
  year   = {2009}
}

Comments

18 pages

R2 v1 2026-07-22T19:14:22.135Z