Comment on “On two-dimensional magnetohydrodynamic turbulence” [Phys. Plasmas 8, 3282 (2001)]
Author(s) -
Mahendra K. Verma,
Gaurav Dar,
V. Eswaran
Publication year - 2002
Publication title -
physics of plasmas
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.75
H-Index - 160
eISSN - 1089-7674
pISSN - 1070-664X
DOI - 10.1063/1.1459064
Subject(s) - physics , magnetohydrodynamic drive , magnetohydrodynamic turbulence , turbulence , plasma , magnetohydrodynamics , astrophysical plasma , statistical physics , mechanics , quantum mechanics
Biskamp and Schwarz [Phys. Plasmas, 8, 3282 (2001)] have reported that theenergy spectrum of two-dimensional magnetohydrodynamic turbulence isproportional to $k^{-3/2}$, which is a prediction of Iroshnikov-Kraichnanphenomenology. In this comment we report some earlier results whichconclusively show that for two-dimensional magnetohydrodynamic turbulence,Kolmogorov-like phenomenology (spectral index 5/3) is better model thanIroshnikov-Kraichnan phenomenology; these results are based on energy fluxanalysis.Comment: 2 pages, Revtex, 1 figure (Phys. Plasmas, v9, p1484, 2002
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