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APS » Journals » Phys. Rev. Lett. » Volume 86 » Issue 13
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Phys. Rev. Lett. 86, 2814–2817 (2001)

Sandpile Model with Tokamaklike Enhanced Confinement Phenomenology

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S. C. Chapman1,*, R. O. Dendy2, and B. Hnat1
1Physics Department, University of Warwick, Coventry CV4 7AL, United Kingdom
2EURATOM/UKAEA Fusion Association, Culham Science Centre, Abingdon, Oxfordshire OX14 3DB, United Kingdom

Received 12 October 2000; published in the issue dated 26 March 2001

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.

© 2001 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevLett.86.2814
DOI:
10.1103/PhysRevLett.86.2814
PACS:
52.55.Dy, 45.70.Ht, 52.35.Ra, 52.55.Fa

*Email address: sandrac@astro.warwick.ac.uk

 
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