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Reconnection rates in driven magnetic reconnection
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10.1063/1.2752510
/content/aip/journal/pop/14/8/10.1063/1.2752510
http://aip.metastore.ingenta.com/content/aip/journal/pop/14/8/10.1063/1.2752510
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

Current density (gray scale) and magnetic field lines for a resistive MHD simulation of the Newton challenge problem at the time of the maximum reconnection rate. A localized resistivity is used given by Eq. (13) with , , and .

Image of FIG. 2.
FIG. 2.

(Color online) Electric field along the axis as function of time for three resistive MHD simulations of the Newton challenge problem with the same boundary inflow but different values of resistivity: , 0.01, and 0.02 (from top to bottom).

Image of FIG. 3.
FIG. 3.

(a) Maximum reconnection rates as function of resistivity for various amplitudes of the boundary deformation, using the localized resistivity model (13). (b) The same data but renormalized using the magnetic field strength at the inflow boundary and the density at the reconnection site at the time of maximum rate.

Image of FIG. 4.
FIG. 4.

Same as Fig. 3(b) but for a wider simulation box with .

Image of FIG. 5.
FIG. 5.

(Color online) Electric field along the axis as function of time for various values of with , using the resistivity model (13) with and , .

Image of FIG. 6.
FIG. 6.

Maximum reconnection rate and maximum driving electric field as function of for , using the resistivity model (13) with .

Image of FIG. 7.
FIG. 7.

(Color online) Electric field for slow driving, , , using the resistivity model (13) with . Top: at for (dotted line) and (solid line). Center: at as function of and . Bottom: at .

Image of FIG. 8.
FIG. 8.

Evolution of magnetic field lines in the island coalescence. Top: initial state. Center: two islands coalesce, forming a thin current sheet in between, which undergoes reconnection. Bottom: the two island have merged into one.

Image of FIG. 9.
FIG. 9.

(Color online) Electric field at as function of time for three values of with uniform resistivity . The solid lines show the location of the O-points within the magnetic islands.

Image of FIG. 10.
FIG. 10.

Maximum reconnection rate in the island coalescence as function of resistivity for different values of .

Image of FIG. 11.
FIG. 11.

Maximum reconnection rate as function of the maximum driving electric field for various values of . Dashed lines connect points that belong to the same values of .

Image of FIG. 12.
FIG. 12.

Same as Fig. 10 but renormalized, using the maximum magnetic field strength in the inflow region and the density at the reconnection site at the time of maximum reconnection rate.

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/content/aip/journal/pop/14/8/10.1063/1.2752510
2007-08-10
2014-04-24
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Reconnection rates in driven magnetic reconnection
http://aip.metastore.ingenta.com/content/aip/journal/pop/14/8/10.1063/1.2752510
10.1063/1.2752510
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