Nonlinear drift-tearing magnetic islands are studied numerically with a four-field model thatincludes the parallel ion dynamics. In certain regions of the parameter space, multiple solutions arefound. In particular, linearly stable drift-tearing perturbations can grow to finite size magnetic islandswhen the amplitude of the initial perturbation is sufficiently large.
Multiple States of Nonlinear Drift-Tearing Islands
M. Ottaviani;D. Grasso
2004
Abstract
Nonlinear drift-tearing magnetic islands are studied numerically with a four-field model thatincludes the parallel ion dynamics. In certain regions of the parameter space, multiple solutions arefound. In particular, linearly stable drift-tearing perturbations can grow to finite size magnetic islandswhen the amplitude of the initial perturbation is sufficiently large.File in questo prodotto:
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