HR: 0830h
AN: SH31A-1093    [PDF]
TI: Hall and Turbulence Effects on Magnetic Reconnection
AU: Smith, D
EM: dcs@ruach.gsfc.nasa.gov
AF: Bartol Research Institute, University of Delaware, Newark, DE 19716 United States
AU: Ghosh, S
EM: rghosh@dsdial.net
AF: Bartol Research Institute, University of Delaware, Newark, DE 19716 United States
AU: Dmitruk, P
EM: pablo@bartol.udel.edu
AF: L3 Communications Analytics, 1801 McCormick Dr. Suite 170, Landover, MD 20774 United States
AU: * Matthaeus, W
EM: whm@udel.edu
AF: L3 Communications Analytics, 1801 McCormick Dr. Suite 170, Landover, MD 20774 United States
AB: We reexamine the influence of the Hall effect and the level of background MHD scale turbulence upon the reconnection rate of a large scale periodic sheet pinch in 2.5 dimensional compressible Hall MHD. The simulations indicate that the large scale reconnection rate is enhanced by both increasing Hall parameter and by increasing turbulence level. The reconnection rate is found to scale linearly with turbulence amplitude and as the 3/2 power of the Hall parameter (correlation scale/ion inertial scale). The effect is quantified for a range of parameters, thus helping to clarify and extend the related GEM challenge simulation study of reconnection rates.
DE: 7827 Kinetic and MHD theory
DE: 7835 Magnetic reconnection
DE: 7863 Turbulence
SC: SPA - Solar and Heliospheric Physics [SH]
MN: 2003 Fall Meeting