A model realization of self-organized criticality for plasma confinement
- 1 August 1996
- journal article
- Published by AIP Publishing in Physics of Plasmas
- Vol. 3 (8), 2903-2911
- https://doi.org/10.1063/1.871650
Abstract
A model for plasma transport near marginal stability is presented. The model is based on subcri‐ tical resistive pressure‐gradient‐driven turbulence. Three‐dimensional nonlinear calculations based on this model show effective transport for subcritical mean profiles. This model exhibits some of the characteristic properties of self‐organized criticality. Perturbative transport techniques are used to elucidate the transport properties. Propagation of positive and negative pulses is studied. The observed results suggest a possible explanation of the apparent nonlocal effects ob‐ served with perturbative experiments in tokamaks.Keywords
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