Control of test particle transport in a turbulent electrostatic model of the Scrape Off Layer

Abstract : The ${\bm E}\times{\bm B}$ drift motion of charged test particle dynamics in the Scrape Off Layer (SOL)is analyzed to investigate a transport control strategy based on Hamiltonian dynamics. We model SOL turbulence using a 2D non-linear fluid code based on interchange instability which was found to exhibit intermittent dynamics of the particle flux. The effect of a small and appropriate modification of the turbulent electric potential is studied with respect to the chaotic diffusion of test particle dynamics. Over a significant range in the magnitude of the turbulent electrostatic field, a three-fold reduction of the test particle diffusion coefficient is achieved.
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https://hal.archives-ouvertes.fr/hal-00183859
Contributor : Guido Ciraolo <>
Submitted on : Tuesday, October 30, 2007 - 12:21:01 PM
Last modification on : Monday, October 1, 2018 - 4:03:21 PM
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  • HAL Id : hal-00183859, version 1
  • ARXIV : 0710.5626

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Guido Ciraolo, Philippe Ghendrih, Yanick Sarazin, Cristel Chandre, Ricardo Lima, et al.. Control of test particle transport in a turbulent electrostatic model of the Scrape Off Layer. Journal of Nuclear Materials, Elsevier, 2007, 363-365, pp.550-554. ⟨hal-00183859⟩

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