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      Anisotropic viscous dissipation in three-dimensional magnetic merging solutions

      Litvinenko, Yuri E.; Craig, Ian J.D.
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      Litvinenko_anisotropic.pdf
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      DOI
       10.1051/0004-6361/200911784
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      Litvinenko, Y.E., & Craig, I. (2009). Anisotropic viscous dissipation in three-dimensional magnetic merging solutions. Astronomy and Astrophysics, 501, 755-760.
      Permanent Research Commons link: https://hdl.handle.net/10289/3483
      Abstract
      Aims: We consider viscous and resistive energy dissipation in the flaring solar corona. Methods: We compute energy dissipation rates, associated with magnetic merging in three dimensions. We examine an exact 3D solution for steady magnetic merging in a viscous resistive incompressible plasma. We use the Braginskii stress tensor to model viscous effects and derive scalings for the resistive and viscous dissipation rates. We evaluate the dissipation rates for typical parameters of solar active regions. Results: Large-scale advective flows required to sustain resistive current sheets are shown to be associated with significant viscous losses.
      Date
      2009
      Type
      Journal Article
      Publisher
      EDP Sciences
      Rights
      This article has been published in the journal: Astronomy and Astrophysics. (c) ESO 2009.
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      • Computing and Mathematical Sciences Papers [1455]
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