• Corpus ID: 118505321

Three-dimensional Iroshnikov-Kraichnan turbulence in a mean magnetic field

@article{Grappin2013ThreedimensionalIT,
  title={Three-dimensional Iroshnikov-Kraichnan turbulence in a mean magnetic field},
  author={Roland Grappin and Wolf-Christian Muller and Andrea Verdini and Ozgur D. Gurcan},
  journal={arXiv: Solar and Stellar Astrophysics},
  year={2013}
}
As shown by M\"uller et al. (2003), the 1D energy spectra deduced from structure functions in simulations of MHD turbulence with mean field $B_0$ show varying scalings, passing from $k_\bot^{-5/3}$ to $k_\bot^{-3/2}$ when $B_0$ increases, while the parallel scaling remains $k_\|^{-2}$. To explain this, Boldyrev (2005, 2006) proposed, as an alternative to the Iroshnikov-Kraichnan (IK) scenario which predicts an isotropic $k^{-3/2}$ scaling, a scenario with a strong perpendicular $k_\bot^{-3/2… 
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