Phys. Rev. E 64, 056405 (2001) [6 pages]Inverse cascade in decaying three-dimensional magnetohydrodynamic turbulenceReceived 22 November 2000; published 22 October 2001 We perform direct numerical simulations of three-dimensional freely decaying magnetohydrodynamic turbulence. For helical magnetic fields, an inverse cascade effect is observed in which power is transfered from smaller scales to larger scales. The magnetic field reaches a scaling regime with self-similar evolution, and power-law behavior at high wave numbers. We also find power-law decay in the magnetic and kinematic energies, and power-law growth in the characteristic length scale of the magnetic field. © 2001 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevE.64.056405
DOI:
10.1103/PhysRevE.64.056405
PACS:
95.30.Qd, 47.65.+a, 47.40.-x, 98.80.-k
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