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Entropy conservation in simulations of magnetic reconnection
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10.1063/1.2349440
/content/aip/journal/pop/13/9/10.1063/1.2349440
http://aip.metastore.ingenta.com/content/aip/journal/pop/13/9/10.1063/1.2349440
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

Current density (gray scale) and magnetic field lines (white) at late stages of a resistive MHD simulation (top) and a PIC simulation (bottom) of the Newton challenge problem; modified after Birn et al. 7

Image of FIG. 2.
FIG. 2.

Mass (top), entropy (center), and pressure (bottom) as functions of the magnetic flux variable for the configurations shown in Fig. 1. Also shown are the parallel and perpendicular pressure components for the PIC simulation.

Image of FIG. 3.
FIG. 3.

(Color online) Joule dissipation (color scale), , in the resistive MHD simulation (top) and the PIC simulation (bottom) at the times of fastest reconnection, showing the strong localization.

Image of FIG. 4.
FIG. 4.

Entropy as function of the flux variable at various times for a MHD simulation with uniform resistivity. The more widely spread dissipation leads to a more noticeable increase in entropy.

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/content/aip/journal/pop/13/9/10.1063/1.2349440
2006-09-27
2014-04-21
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Entropy conservation in simulations of magnetic reconnection
http://aip.metastore.ingenta.com/content/aip/journal/pop/13/9/10.1063/1.2349440
10.1063/1.2349440
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