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arXiv · 2603.23807

Clumps in the Resistive-Drift-Wave turbulence

S. I. Krasheninnikov·R. D. Smirnov
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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.

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S. I. Krasheninnikov, R. D. Smirnov. 2026-03-25. Clumps in the Resistive-Drift-Wave turbulence. https://arxiv.org/abs/2603.23807

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