paper

On the Turbulent Behavior of a Magnetically Confined Plasma Near the X-Point

arXiv:2205.02559 · doi:10.3390/fluids7050157

Abstract

We construct a model for the turbulence near the X-point of a Tokamak device and, under suitable assumptions, we arrive to a closed equation for the electric field potential fluctuations. The analytical and numerical analysis is focused on a reduced two-dimensional formulation of the dynamics, which allows a direct mapping to the incompressible Navier-Stokes equation. The main merit of this study is to outline how the turbulence near the X-point, in correspondence to typical operation conditions of medium and large size Tokamaks, is dominated by the enstrophy cascade from large to smaller spatial scales.

19 pages, 14 figures

References in corpus (1)

Cited by in corpus (4)