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Hysteresis and relaxation in bistable diffusive sandpile

  • Author(s): Gruzinov, I;
  • Diamond, PH;
  • Rosenbluth, MN
  • et al.

Published Web Location

https://doi.org/10.1063/1.1539032
Abstract

The effect of ambient diffusion, representative of neoclassical transport, on hysteresis and edge-relaxation phenomena was studied. This effect prolongs the time needed to reach the magnetohydrodynamic (MHD) stability boundary, and thus provides a positive feedback on the pedestal. The results indicate that the effect of the diffusion on the pedestal structure and dynamic is substantial.

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