Landau Days 2016 Landau Days 2016 June, 20-22 Chernogolovka, Russia Folding of vortex lines in hydrodynamic turbulence: new results Date/Time: 14:30 20-Jun-2016 Abstract: Generation of pancake-like high-vorticity structures in developing hydrodynamic turbulence is described with a new concept of folding for the vorticity lines distribution. Using asymptotic analysis, we establish the universal power law, $\omega_{\max}\propto \ell^{-2/3}$, between the maximum vorticity and pancake thickness, which determine, respectively, the dynamical and geometrical scales of the corresponding coherent structure. Numerical simulation, based on a novel numerical scheme that accesses the Eulerian--Lagrangian mapping for vortex lines evolution, verifies our theoretical conclusions. Authors Agafontsev Dmitry S. (no additional information) Kuznetsov Evgenii A. (Presenter) (no additional information) Mailybaev Alexei A (no additional information) © 2012, Landau Institute for Theoretical Physics RAS www.itp.ac.ru Contact webmaster