Thursday, May 30, 2013

1305.6695 (Katsuaki Higashimori et al.)

Explosive Turbulent Magnetic Reconnection    [PDF]

Katsuaki Higashimori, Nobumitsu Yokoi, Masahiro Hoshino
We report simulation results for turbulent magnetic reconnection obtained using a newly developed Reynolds-averaged magnetohydrodynamics model. We find that the initial Harris current sheet develops in three ways, depending on the strength of turbulence: laminar reconnection, turbulent reconnection, and turbulent diffusion. The turbulent reconnection explosively converts the magnetic field energy into both kinetic and thermal energy of plasmas, and generates open fast reconnection jets. This fast turbulent reconnection is achieved by the localization of turbulent diffusion. Additionally, localized structure forms through the interaction of the mean field and turbulence.
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