Physics
Scientific paper
May 1994
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994jgr....99.8657y&link_type=abstract
Journal of Geophysical Research (ISSN 0148-0227), vol 99, no. A5, p. 8657-8669
Physics
20
Current Sheets, Electrical Resistivity, Environment Models, Magnetic Field Configurations, Magnetic Field Reconnection, Magnetohydrodynamic Stability, Magnetohydrodynamics, Planetary Magnetic Fields, Plasma Currents, Space Plasmas, Tearing Modes (Plasmas), Magnetosheath, Mathematical Models, Shock Waves, Symmetry, Two Dimensional Models
Scientific paper
The tearing mode and magnetic reconnection are studied for multiple current sheet systems by two-dimensional magnetohydrodynamic (MHD) simulations. Both the linear and nonlinear evolution of this process are anaylsed for laminar perturbations. The results illustrate the existence of a linear regime with a symmetric and antisymmetric mode and agree with previous analytic results (Otto and Birk, 1992). The nonlinear evolution shows a number of interesting new features and may explain some properties in corresponding studies of turbulent reconnection. For wavelengths larger than twice the current sheet separation the evolution of antisymmetric modes leads to an entire reconfiguration of the magnetic field and converts a major portion of the magnetic energy into kinetic energy. Antisymmetric modes with smaller wavelengths and symmetric modes are found to saturate. The influence of the value of the resistivity on the reconnection rate decreases in the nonlinear evolution, and the ratio of current sheet separation to wavelength seems to be of major importance. A comparion of the dynamics of periodic current sheets with the evolution of only two current sheets indicates that some of the results for the periodic system also apply to the evolution of only two interacting current sheets. The results are discussed with respect to observations of large-scale plasma and magnetic field reconfigurations in the magnetosheath and near the Earth's bow shock.
Lee Clarence L.
Muzzell D.
Otto Andreas
Yan Maodu
No associations
LandOfFree
Tearing mode instability in a multiple current sheet system does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Tearing mode instability in a multiple current sheet system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Tearing mode instability in a multiple current sheet system will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-887379