PhysRevE.64.056405.pdf (280.5 kB)
Inverse cascade in decaying three-dimensional magnetohydrodynamic turbulence
journal contribution
posted on 2023-06-08, 05:30 authored by Mattias Christensson, Mark HindmarshMark Hindmarsh, Axel BrandenburgWe 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.
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Physical Review EPublisher
American Physical SocietyExternal DOI
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5Volume
64Page range
056405Department affiliated with
- Physics and Astronomy Publications
Notes
Collaboration leader and supervisor of research student Christensson, adapting code written by Brandenburg. The results are of great utility for studies of the evolution of primordial magnetic fields in cosmology, helping to make predictions for field strengths today.Full text available
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Legacy Posted Date
2012-02-06First Open Access (FOA) Date
2016-03-22First Compliant Deposit (FCD) Date
2016-11-10Usage metrics
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