Turbulent relaxation to a force-free field-reversed state

Details Turbulent relaxation to a force-free field-reversed state Turbulent relaxation to a force-free field-reversed state

Jul 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986phrvl..57..428d&link_type=abstract

Physical Review Letters (ISSN 0031-9007), vol. 57, July 28, 1986, p. 428-431.

Physics

34

Force-Free Magnetic Fields, Incompressible Fluids, Magnetohydrodynamic Turbulence, Zeta Pinch, Kolmogoroff Theory, Molecular Relaxation, Ohmic Dissipation

Scientific paper

The evolution of nonequilibrium initial conditions of an incompressible magnetohydrodynamic Z pinch is described by a three-dimensional, pseudospectral numerical code. Magnetohydrodynamic turbulence develops in the resistive, nonviscous magnetofluid, resulting in the selective decay of the energy relative to the magnetic helicity, at Lundquist numbers of only a few hundred. An interior force-free region grows with time and achieves spontaneous reversal of the toroidal magnetic field at the wall, without the necessity of an external electric field.

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