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Global current profile effects on the evolution and saturation of magnetic islands
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10.1063/1.4791653
/content/aip/journal/pop/20/2/10.1063/1.4791653
http://aip.metastore.ingenta.com/content/aip/journal/pop/20/2/10.1063/1.4791653
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

(a) Different models of equilibrium magnetic field in slab geometry. (b) Equilibrium magnetic field . Model parameters are fixed: .

Image of FIG. 2.
FIG. 2.

The width of the saturated magnetic island w for different current profiles: H, A, and C.

Image of FIG. 3.
FIG. 3.

Equilibrium current of profile A and saturated mean current for two values of .

Image of FIG. 4.
FIG. 4.

Island width as a function of time: (a) profiles H and A; (b) profile C.

Image of FIG. 5.
FIG. 5.

Locally averaged vorticity as a function of time.

Image of FIG. 6.
FIG. 6.

(a) Local vorticity sources at the separatrix due to Reynolds/Maxwell stresses and viscous damping; (b) Contributions to the Maxwell stress tensor at the separatrix.

Image of FIG. 7.
FIG. 7.

. (a) The local vorticity density at ; (b) The schematic distribution of the dominant vorticity source due to Maxwell stress. The vorticity is generated in two regions: magnetic separatrix and the outer current sheet.

Image of FIG. 8.
FIG. 8.

(a) The island width evolution for various with profile D ( ). (b) The island saturation width for various with profile D for three values of .

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/content/aip/journal/pop/20/2/10.1063/1.4791653
2013-02-14
2014-04-20
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Global current profile effects on the evolution and saturation of magnetic islands
http://aip.metastore.ingenta.com/content/aip/journal/pop/20/2/10.1063/1.4791653
10.1063/1.4791653
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