English

Development of high vorticity in incompressible 3D Euler equations: influence of initial conditions

Fluid Dynamics 2022-12-09 v1

Abstract

The incompressible three-dimensional ideal flows develop very thin pancake-like regions of increasing vorticity. These regions evolve with the scaling ωmax(t)(t)2/3\omega_{\max}(t)\propto\ell(t)^{-2/3} between the vorticity maximum and pancake thickness, and provide the leading contribution to the energy spectrum, where the gradual formation of the Kolmogorov interval Ekk5/3E_{k}\propto k^{-5/3} is observed for some initial flows [Agafontsev et. al, Phys. Fluids 27, 085102 (2015)]. With the massive numerical simulations, in the present paper we study the influence of initial conditions on the processes of pancake formation and the Kolmogorov energy spectrum development.

Keywords

Cite

@article{arxiv.1701.02566,
  title  = {Development of high vorticity in incompressible 3D Euler equations: influence of initial conditions},
  author = {D. S. Agafontsev and E. A. Kuznetsov and A. A. Mailybaev},
  journal= {arXiv preprint arXiv:1701.02566},
  year   = {2022}
}

Comments

5 pages, 3 figures