Matches in SemOpenAlex for { <https://semopenalex.org/work/W3153400682> ?p ?o ?g. }
- W3153400682 abstract "Magnetic reconnection in partially ionized plasmas is a ubiquitous and important phenomenon in both laboratory and astrophysical systems. Here, simulations of partially ionized magnetic reconnection with well-matched initial conditions are performed using both multi-fluid and fully-kinetic approaches. Despite similar initial conditions, the time-dependent evolution differs between the two models. In multi-fluid models, the reconnection rate locally obeys either a decoupled Sweet–Parker scaling, where neutrals are unimportant, or a fully coupled Sweet–Parker scaling, where neutrals and ions are strongly coupled, depending on the resistivity. In contrast, kinetic models show a faster reconnection rate that is proportional to the fully-coupled, bulk Alfvén speed, vA⋆. These differences are interpreted as the result of operating in different collisional regimes. Multi-fluid simulations are found to maintain νniL/vA⋆≳1, where νni is the neutral–ion collision frequency and L is the time-dependent current sheet half-length. This strongly couples neutrals to the reconnection outflow, while kinetic simulations evolve to allow νniL/vA⋆<1, decoupling neutrals from the reconnection outflow. Differences in the way reconnection is triggered may explain these discrepancies." @default.
- W3153400682 created "2021-04-26" @default.
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- W3153400682 date "2021-04-01" @default.
- W3153400682 modified "2023-09-25" @default.
- W3153400682 title "Multi-fluid and kinetic models of partially ionized magnetic reconnection" @default.
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- W3153400682 doi "https://doi.org/10.1063/5.0039860" @default.
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