Structure of coherent columnar vortices in threedimensional rotating turbulent flow
Abstract
It is known that the turbulence in a fastrotating volume becomes effectively twodimensional. The latter is characterized by an inverse energy cascade leading to the formation of coherent flow in finite systems. In a rotating threedimensional vessel this flow has the form of columnar vortices. Here we develop an analytical theory describing interaction of the vortex with turbulent pulsations. This interaction results in energy transfer from smallscale eddies to the largescale vortex. We derive the equation for the radial velocity profile of the vortex and solve it for the simplest boundary conditions. We indicate the domain of physical parameters where our theory works.
 Publication:

Physical Review Fluids
 Pub Date:
 March 2020
 DOI:
 10.1103/PhysRevFluids.5.034604
 Bibcode:
 2020PhRvF...5c4604K