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Abstract

High-resolution numerical studies of decaying two-dimensional magnetohydrodynamic turbulence using up to 768 modes in general periodic systems reveal the following properties:- the evolution proceeds in a quasi-selfsimilar way with constant kinetic to magnetic energy ratio and constant micro- and macro-scale Reynolds numbers; the energy dissipation rate is independent of the values of the dissipation coefficients; the inertial-range energy spectra follow a Kolmogorov law. Small-scale fluctuations are concentrated in the region of weak large-scale magnetic fields. The resulting strong intermittency is analogous to the behaviour recently observed in two-dimensional hydrodynamic turbulence with the magnetic field intensity taking the role vorticity plays in hydrodynamic systems.

Additional information

Authors: BISKAMP D, Max-Planck-Institut für Plasmaphysik, Garching bei München (DE);WELTER H, Max-Planck-Institut für Plasmaphysik, Garching bei München (DE)
Bibliographic Reference: Report: IPP 6/279 EN (1988)
Availability: Available from Max-Planck-Institut für Plasmaphysik, 8046 Garching bei München (DE)
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