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| Paper: |
The Spectral Structure of Anisotropic MHD Turbulence |
| Volume: |
444, 5th International Conference of Numerical Modeling of Space Plasma Flows (ASTRONUM 2010) |
| Page: |
54 |
| Authors: |
Grappin, R.; Müller, W.-C. |
| Abstract: |
A new analysis of the anisotropic spectral energy distribution in
incompressible magnetohydrodynamic (MHD) turbulence permeated by a strong mean magnetic field is
carried out on high-resolution pseudo-spectral direct numerical simulations with large-scale isotropic forcing.
In each direction in planes containing B0, starting at the forced large-scales, the spectrum exhibits an angle-dependent dissipative wavenumber kd(θ) but for k ≥ k0 it assumes a single θ-independent functional form
F(k/kd),
In particular, the scaling law is isotropic in those planes.
The previous properties still hold when increasing the mean field from B0 = 5 up to B0 = 10 brms. |
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