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Nonlinear stability of magnetic islands in a rotating helical plasma
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10.1063/1.4773041
/content/aip/journal/pop/19/12/10.1063/1.4773041
http://aip.metastore.ingenta.com/content/aip/journal/pop/19/12/10.1063/1.4773041
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

Schematic diagram of nonlinear states of magnetic islands regime in a space.

Image of FIG. 2.
FIG. 2.

Schematic diagram of nonlinear states magnetic islands in a , where D = 0 is considered as a typical low- case.

Image of FIG. 3.
FIG. 3.

RMP amplitude dependence of the saturated magnetic island width, where the curvature parameter is and the anomalous viscosity coefficient is . The dashed line shows the magnetic island width in the vacuum limit.

Image of FIG. 4.
FIG. 4.

Extended view of Fig. 4. (a) Island width and (b) island phase in the ramp-up phase, and (c) island width and (d) island phase in the ramp-down phase.

Image of FIG. 5.
FIG. 5.

Radial profile of the poloidal flow velocity near magnetic islands for , , and , where fV is the amplification factor of the neoclassical flow velocity. Island regions for the locked flows and an unlocked flow are shown by the long and short double-headed arrows, respectively.

Image of FIG. 6.
FIG. 6.

Stability diagram of magnetic islands in a space of the anomalous viscosity coefficient and the RMP amplitude , where .

Image of FIG. 7.
FIG. 7.

RMP amplitude dependence of the saturated magnetic island for (a) and (b) , where and is the amplification factor of the average curvature.

Image of FIG. 8.
FIG. 8.

Stability diagram of magnetic islands in a space of the amplified curvature parameter D and the RMP amplitude, where . The original value of D is indicated by an arrow.

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/content/aip/journal/pop/19/12/10.1063/1.4773041
2012-12-28
2014-04-19
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Nonlinear stability of magnetic islands in a rotating helical plasma
http://aip.metastore.ingenta.com/content/aip/journal/pop/19/12/10.1063/1.4773041
10.1063/1.4773041
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