Model of line preserving field line motions using Euler potentials

Journal Article · Sat Jun 15 04:00:00 EDT 2013 · Annals of Physics (New York)

DOI:https://doi.org/10.1016/J.AOP.2013.03.004· OSTI ID:22220729

Figura, Przemysław ^[1]

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1. Space Research Centre, Polish Academy of Sciences, Warsaw (Poland)

We consider behavior of finite magnetic field lines during reconnection processes. We portray field line motions using Euler potentials representation. Here, we propose a new insight into plasma flow fields related with magnetic reconnection. In this approach reconnection is treated as a breakage of magnetic topology, which results in deviation from the line preserving flow regime. We derive constraints and the general equations for these flows. In our approach the flux preserving flows are treated as a special case of line preserving regime. We also derive a constraint on a non-ideal term in Ohm’s Law within diffusion regions, which relates plasma flow with resistivity, and which must hold for non-reconnective diffusion. We also propose a new method of detecting magnetic reconnection. -- Highlights: •We formulate a line preserving magnetic field flow equation using Euler potentials. •We find constraints on a non-reconnective general resistivity term in Ohm’s Law. •We propose a new method of detecting magnetic reconnection.

• OSTI ID: 22220729
• Journal Information: Annals of Physics (New York), Journal Name: Annals of Physics (New York) Vol. 333; ISSN 0003-4916; ISSN APNYA6
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
DIFFUSION
EQUATIONS
LIMITING VALUES
MAGNETIC FIELDS
MAGNETIC RECONNECTION
PLASMA
POTENTIALS
TOPOLOGY