Turbulent magnetic reconnection in two dimensions

Authors

  • N. F. Loureiro,

    Corresponding author
    1. EURATOM/UKAEA Fusion Association, Culham Science Centre, Abingdon, OX14 3DB
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  • D. A. Uzdensky,

    1. Department of Astrophysical Sciences/CMSO, Princeton University, Princeton, NJ 08544, USA
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  • A. A. Schekochihin,

    1. Rudolf Peierls Centre for Theoretical Physics, University of Oxford, Oxford OX1 3NP
    2. Blackett Laboratory, Imperial College, London SW7 2AZ
    3. Institut Henri Poincaré, Université Pierre et Marie Curie, 75231 Paris Cedex 5, France
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  • S. C. Cowley,

    1. EURATOM/UKAEA Fusion Association, Culham Science Centre, Abingdon, OX14 3DB
    2. Blackett Laboratory, Imperial College, London SW7 2AZ
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  • T. A. Yousef

    1. Rudolf Peierls Centre for Theoretical Physics, University of Oxford, Oxford OX1 3NP
    2. Blackett Laboratory, Imperial College, London SW7 2AZ
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E-mail: nloureiro@ipfn.ist.utl.pt

Present address: IPFN, Instituto Superior Técnico, Lisbon 1049-001, Portugal.

ABSTRACT

Two-dimensional numerical simulations of the effect of background turbulence on two-dimensional resistive magnetic reconnection are presented. For sufficiently small values of the resistivity (η) and moderate values of the turbulent power (ε), the reconnection rate is found to have a much weaker dependence on η than the Sweet–Parker scaling of η1/2 and is even consistent with an η independent value. For a given value of η, the dependence of the reconnection rate on the turbulent power exhibits a critical threshold in ε above which the reconnection rate is significantly enhanced.

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