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arXiv · 2509.04132

Lagrangian features of turbulent transport in tokamak plasmas

D. I. Palade
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Abstract

This study investigates the Lagrangian properties of ion turbulent transport driven by drift-type turbulence in tokamak plasmas. Despite the compressible and inhomogeneous nature of Eulerian gyrocenter drifts, numerical simulations with the T3ST code reveal approximate ergodicity, stationarity, and time-symmetry. These characteristics are attributed to broad initial phase-space distributions that support ergodic mixing. Moreover, relatively minor constraints on the initial distributions are found to have negligible effects on transport levels.

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D. I. Palade. 2025-09-04. Lagrangian features of turbulent transport in tokamak plasmas. https://arxiv.org/abs/2509.04132

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