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REVISITING A CLASSIC: The PARKER-MOFFATT PROBLEM

Abstract:

The interaction of two colliding Alfvén wave packets is described here by means of magnetohydrodynamics (MHD) and hybrid kinetic numerical simulations. The MHD evolution revisits the theoretical insights described by Moffatt, Parker, Kraichnan, Chandrasekhar, and Elsässer in which the oppositely propagating large-amplitude wave packets interact for a finite time, initiating turbulence. However, the extension to include compressive and kinetic effects, while maintaining the gross characteristics of the simpler classic formulation, also reveals intriguing features that go beyond the pure MHD treatment.

Año de publicación:

2017

Keywords:

  • plasmas
  • magnetohydrodynamics (MHD)
  • solar wind

Fuente:

scopusscopus
googlegoogle

Tipo de documento:

Article

Estado:

Acceso restringido

Áreas de conocimiento:

    Áreas temáticas:

    • Matemáticas

    Contribuidores:

    Malara F.Malara F.
    Yang Y.Yang Y.
    Christian L. VásconezChristian L. Vásconez
    Pezzi O.Pezzi O.
    Veltri P.Veltri P.
    Servidio S.Servidio S.
    Matthaeus W.H.Matthaeus W.H.
    Parashar T.N.Parashar T.N.
    Valentini F.Valentini F.