Abstract
Nonlinear stage of instability of flute modes in a plasma with non-uniform density and temperature is investigated on the scales arbitrary to the ion Larmor radius. Nonlinear equations describing the interaction of small-scale flute turbulence with large scale zonal structures and the evolution of the zonal structures are derived. Flute modes can be responsible for the intermittent convective-like transport across the magnetic field associated with meso-scale coherent structures and enhanced viscous heating associated with short scales in the turbulent wave spectrum. Numerical solution of derived equations will allow the determination of a possible temperature increase in plasma due to the presence of flute mode turbulence. This is important for numerous applications, including Z-pinches and laboratory astrophysics.
Published Version
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