Initial pressure distribution (top) and ion flow speed at two characteristic times for case A1 with initially uniform guide field , as defined in Table I.
Evolution of the reconnected flux (a) for cases A1 and A2 with initially uniform guide field and (b) for cases B1, B2, and B3 starting from a force-free field, as defined in Table I. The corresponding MHD runs are based on localized resistivity defined by Eqs. (12) and (13) with .
Energy outflow for PIC simulations A1 (left) and B1 (right) near the time of fastest reconnection, showing (from top to bottom) Poynting flux , ion enthalpy flux , electron enthalpy flux , ion bulk kinetic energy flux , and electron bulk kinetic energy flux . Black rectangles indicate the boundaries of boxes used to integrate incoming and outgoing energy fluxes discussed in Sec. IV.
Late configurations of runs with initially uniform : (left) PIC simulation A1 (Table I) at , (right) corresponding MHD simulation at with . From top to bottom: density , pressure , the magnetic field component , the current density component , and the temperature given by .
Same as Fig. 4 but for initially force-free fields B1 (PIC) and a corresponding MHD run with .
Integral quantities at late times as functions of for the cases with initially constant . The top row shows, from left to right: mass , footpoint displacement , and entropy function for PIC run A1 (red dashed-dotted lines) and MHD (blue solid lines) with , using and instead of Eq. (13). The bottom row shows, from left to right: density , magnetic field component , and pressure .
Same as Fig. 6 but for the initially force-free cases B1 (PIC) and MHD with .
Ion pressure components parallel (top) and perpendicular (center) to the magnetic field and ion velocity distributions (bottom) integrated over the black rectangle indicated in the top panels at , for the force-free initial case B1.
Same as Fig. 8 but at .
Initial parameters for seven PIC runs.
Dissipation and energy transfer for the runs listed in Table I. denotes Joule dissipation, defined by Eq. (24); is the transfer by Lorentz forces (25); the work done by pressure gradient forces (26); the magnetic energy (Poynting) flux, defined by Eq. (15); and enthalpy flux (19). The last two columns contain the net flux of bulk kinetic energy , Eq. (21), and heat flux, , summed over both particle species. The latter was evaluated only for cases B and C.
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