Profile of coherent vortices in two-dimensional turbulence
I. V. Kolokolov, V. V. Lebedev
Landau Institute for Theoretical Physics of the RAS, 119334 Moscow, Russia
Moscow Institute of Physics and Technology, 141700 Dolgoprudny, Russia
Abstract
The inverse cascade of two-dimensional turbulence in a restricted domain
leads to creating a coherent flow containing a number of system-size
vortices. We examine the case of forcing turbulence with zero bottom friction
where the final statistically steady state is determined by viscosity. We
analytically establish structure of the coherent vortices in the state.