Towards a self-consistent theory of turbulent reconnection

Eun jin Kim; P. H. Diamond

doi:10.1016/S0375-9601(01)00751-4

Towards a self-consistent theory of turbulent reconnection

Eun jin Kim, P. H. Diamond

University of California, San Diego

Research output: Contribution to journal › Article › peer-review

6 Citations (Scopus)

Abstract

Fast reconnection due to turbulent dissipation has long been hypothesized. This classic idea is critically examined in 3D reduced magnetohydrodynamic turbulence, by taking into account the backreaction of small-scale magnetic fields. We find that the backreaction leads to such a dramatic reduction in a global reconnection rate as to recover the original Sweet-Parker scaling. In 2D limit, the global reconnection rate is shown to be enhanced over the Sweet-Parker result by a factor of magnetic Mach number. These results are consequences of mean square magnetic potential balance.

Original language	English
Pages (from-to)	407-412
Number of pages	6
Journal	Physics Letters, Section A: General, Atomic and Solid State Physics
Volume	291
Issue number	6
Early online date	27 Nov 2001
DOIs	https://doi.org/10.1016/S0375-9601(01)00751-4
Publication status	Published - 17 Dec 2001
Externally published	Yes

ASJC Scopus subject areas

General Physics and Astronomy

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10.1016/S0375-9601(01)00751-4

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abstract = "Fast reconnection due to turbulent dissipation has long been hypothesized. This classic idea is critically examined in 3D reduced magnetohydrodynamic turbulence, by taking into account the backreaction of small-scale magnetic fields. We find that the backreaction leads to such a dramatic reduction in a global reconnection rate as to recover the original Sweet-Parker scaling. In 2D limit, the global reconnection rate is shown to be enhanced over the Sweet-Parker result by a factor of magnetic Mach number. These results are consequences of mean square magnetic potential balance.",

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AB - Fast reconnection due to turbulent dissipation has long been hypothesized. This classic idea is critically examined in 3D reduced magnetohydrodynamic turbulence, by taking into account the backreaction of small-scale magnetic fields. We find that the backreaction leads to such a dramatic reduction in a global reconnection rate as to recover the original Sweet-Parker scaling. In 2D limit, the global reconnection rate is shown to be enhanced over the Sweet-Parker result by a factor of magnetic Mach number. These results are consequences of mean square magnetic potential balance.

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Towards a self-consistent theory of turbulent reconnection

Abstract

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