Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1569239 | Journal of Nuclear Materials | 2007 | 5 Pages |
Abstract
The EÂ ÃÂ 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.
Keywords
Related Topics
Physical Sciences and Engineering
Energy
Nuclear Energy and Engineering
Authors
G. Ciraolo, Ph. Ghendrih, Y. Sarazin, C. Chandre, R. Lima, M. Vittot, M. Pettini,