Comment on "On two-dimensional magnetohydrodynamic turbulence" [Phys. Plasmas, 8, 3282 (2001)]

Details Comment on "On two-dimensional magnetohydrodynamic turbulence" [Phys. Plasmas, 8, 3282 (2001)] Comment on "On two-dimensional magnetohydrodynamic turbulence" [Phys. Plasmas, 8, 3282 (2001)]

2002-04-14

arxiv.org/abs/nlin/0204026v1

Nonlinear Sciences

Chaotic Dynamics

2 pages, Revtex, 1 figure (Phys. Plasmas, v9, p1484, 2002)

Scientific paper

10.1063/1.1459064

Biskamp and Schwarz [Phys. Plasmas, 8, 3282 (2001)] have reported that the energy spectrum of two-dimensional magnetohydrodynamic turbulence is proportional to $k^{-3/2}$, which is a prediction of Iroshnikov-Kraichnan phenomenology. In this comment we report some earlier results which conclusively show that for two-dimensional magnetohydrodynamic turbulence, Kolmogorov-like phenomenology (spectral index 5/3) is better model than Iroshnikov-Kraichnan phenomenology; these results are based on energy flux analysis.

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