Posters Proceedings »

Stochastic evolution of small-scale velocity fluctuations in

PDF
87.0KB

Formation of vortex filaments (regions of high vorticity) is derived
based on the Navier-Stokes equation. Stochasticity is introduced via
random large-scale velocity components, without using external
random forces. It is shown that, under general assumptions,
high-vorticity regions undergo exponential stretching. The motion
inside a filament is reduced to one-dimensional.

Author(s):

Kirill Zybin    
P.N. Lebedev Physical Institute, Theory Department
Russian Federation

Valeria Sirota    
P.N. Lebedev Physical Institute, Theory Department
Russian Federation