Dynamics of decaying two-dimensional magnetohydrodynamic turbulence
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.
Bibliographic Reference: Report: IPP 6/279 EN (1988)
Availability: Available from Max-Planck-Institut für Plasmaphysik, 8046 Garching bei München (DE)
Record Number: 198910468 / Last updated on: 1994-12-01
Original language: en
Available languages: en