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Inverse cascade in decaying three-dimensional magnetohydrodynamic turbulence

Lookup NU author(s): Professor Axel Brandenburg

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Abstract

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.

Publication metadata

Author(s): Christensson M, Hindmarsh M, Brandenburg A

Publication type: Article

Publication status: Published

Journal: Physical Review E

Year: 2001

Volume: 64

Issue: 5

ISSN (print): 1539-3755

ISSN (electronic): 1550-2376

Publisher: American Physical Society

URL: http://dx.doi.org/10.1103/PhysRevE.64.056405

DOI: 10.1103/PhysRevE.64.056405

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