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Updated: May 2, 2026

An Analog Macroscopic Technique for Studying Molecular Hydrodynamic Processes in Dense Gases and Liquids
Published on: December 4, 2017
Nondiffusive transport of inertial heavy impurities in drift-wave turbulence
Zetao Lin1, Benjamin Kadoch2, Sadruddin Benkadda3
1Aix-Marseille Université, CNRS, I2M, UMR 7373, 13331 Marseille, France.
Abstract:
We investigate the transport behavior of tungsten impurities with finite inertia in drift-wave turbulence using the Hasegawa-Wakatani model. Unlike previous tracer-based models, our simulations reveal a transition to nondiffusive dynamics for a range of charge states. This mechanism offers a turbulence-driven route to core impurity accumulation. This finding underscores the nontrivial role of particle inertia in impurity dynamics and has strong implications for impurity control in future fusion devices such as ITER.
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