Energetics of forced magnetic reconnection in a visco-resistive plasma

Bian, N.H. and Vekstein, G. (2005) Energetics of forced magnetic reconnection in a visco-resistive plasma. Physics of Plasmas, 12(7), 072902. (doi:10.1063/1.1938587)

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Abstract

The rate of energy dissipation provided by the ongoing magnetic reconnection in a force-free magnetic field is investigated in the framework of visco-resistive magnetohydrodynamics(MHD). It is shown that viscous effects are important even under small magnetic Prandtl number Pm≡ν/η, namely for Pm>S−2/5, where ν and η are the plasmaviscosity and resistivity, respectively, and S⪢1 is the Lundquist number of a highly conducting plasma. Various regimes of plasma heating, which are determined by the nondimensional parameters Pm, S, and ωτA, are identified, where τA is the Alfvén transit time of the magnetic configuration and ω is the frequency of an external driver.

Item Type:Articles
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Bian, Dr Nicolas Horace
Authors: Bian, N.H., and Vekstein, G.
College/School:College of Science and Engineering > School of Physics and Astronomy
Journal Name:Physics of Plasmas
Publisher:American Institute of Physics
ISSN:1070-664X
ISSN (Online):1089-7674

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