Clumps in the Resistive-Drift-Wave turbulence
Plasma Physics
2026-03-26 v1
Abstract
The results of numerical simulations of the Hasegawa-Wakatani equation demonstrate that, similarly to decaying turbulence in 2D fluids, at a small electron adiabaticity parameter, the resistive-drift-wave (RDW) turbulence is dominated by the vortices. Occasionally, vortices with different signs become coupled and propagate ballistically as a dipole over a large distance, entraining plasma density. Such ballistic motion of the vortex-density clumps in radial direction provides a non-local feature of plasma transport associated with the RDW turbulence. Large magnitude of plasma parameters perturbations associated with clumps can initiate other plasma instabilities and nonlinear phenomena.
Cite
@article{arxiv.2603.23807,
title = {Clumps in the Resistive-Drift-Wave turbulence},
author = {S. I. Krasheninnikov and R. D. Smirnov},
journal= {arXiv preprint arXiv:2603.23807},
year = {2026}
}