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Sandpile model with tokamaklike enhanced confinement phenomenology
S C Chapman1, R O Dendy, B Hnat
1Physics Department, University of Warwick, Coventry CV4 7AL, United Kingdom.
Physical Review Letters
|April 6, 2001
Abstract:
Confinement phenomenology characteristic of magnetically confined plasmas emerges naturally from a simple sandpile algorithm when the parameter controlling redistribution scale length is varied. Close analogs are found for enhanced confinement, edge pedestals, and edge localized modes (ELMs), and for the qualitative correlations between them. These results suggest that tokamak observations of avalanching transport are deeply linked to the existence of enhanced confinement and ELMs.