Explosive turbulent magnetic reconnection
| Autor: | Katsuaki Higashimori, Nobumitsu Yokoi, Masahiro Hoshino |
|---|---|
| Rok vydání: | 2013 |
| Předmět: |
Earth and Planetary Astrophysics (astro-ph.EP)
Physics Turbulent diffusion Turbulence FOS: Physical sciences General Physics and Astronomy Laminar flow Magnetic reconnection Plasma Mechanics Kinetic energy Physics - Plasma Physics Plasma Physics (physics.plasm-ph) Nonlinear Sciences::Chaotic Dynamics Physics::Fluid Dynamics Current sheet Classical mechanics Physics::Plasma Physics Physics::Space Physics Astrophysics::Solar and Stellar Astrophysics Magnetohydrodynamics Astrophysics - Earth and Planetary Astrophysics |
| Zdroj: | Physical review letters. 110(25) |
| ISSN: | 1079-7114 |
| Popis: | 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. Comment: 4 pages, 4 figures, accepted by PRL |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|