Non-diffusive transport of Inertial Heavy Impurities in Drift-Wave Turbulence
POSTER
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 non-diffusive dynamics for a range of charge states. This novel 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.
*This work was supported by the French Federation for Magnetic Fusion Studies (FR-FCM) and the Eurofusion Consortium, funded by the Euratom Research and Training Programme (grant number 633053); and the Agence Nationale de la Recherche (ANR), project CM2E (grant number ANR-20-CE46-0010-01). The views and opinions expressed herein do not necessarily reflect those of the European Commission.
Presenters
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Zetao Lin
- I2M, Aix-Marseille University