Physics – Plasma Physics
Scientific paper
2009-02-21
Physics
Plasma Physics
4pages, 4 figures
Scientific paper
The self-consistent spatiotemporal evolution of drift wave (DW) radial envelope and zonal flow (ZF) amplitude is investigated in a slab model [1]. Stationary solution of the coupled partial differential equations in a simple limit yields formation of DW-ZF soliton structures, which propagate at group velocity depending on the envelope peak amplitude. Additional interesting physics, e.g. generation, destruction, collision and reflection of solitons, as well as turbulence bursting can also be observed due to effects of linear growth/damping, dissipation, equilibrium nonuniformities and soliton dynamics. The propagation of soliton causes significant radial spreading of DW turbulence and therefore can affect transport scaling with system size by broadening of the turbulent region. Correspondence of the present analysis with the description of DW-ZF interactions in toroidal geometry [2, 3] is also elucidated.
Chen Liu
Guo Zehua
Zonca Fulvio
No associations
LandOfFree
Radial Spreading of Drift Wave-Zonal Flow Turbulence via Soliton Formation does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Radial Spreading of Drift Wave-Zonal Flow Turbulence via Soliton Formation, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Radial Spreading of Drift Wave-Zonal Flow Turbulence via Soliton Formation will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-98996