Physics – Plasma Physics
Scientific paper
Apr 1996
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1996jgr...101.7619m&link_type=abstract
Journal of Geophysical Research, Volume 101, Issue A4, p. 7619-7630
Physics
Plasma Physics
113
Space Plasma Physics: Turbulence, Space Plasma Physics: Nonlinear Phenomena, Solar Physics, Astrophysics, And Astronomy: Magnetic Fields, Space Plasma Physics: Numerical Simulation Studies
Scientific paper
Direct spectral method simulation of the three-dimensional magnetohydrodynamics (MHD) equations is used to explore anisotropy that develops from initially isotropic fluctuations as a consequence of a uniform applied magnetic field. Spectral and variance anisotropies are investigated in both compressible and incompressible MHD. The nature of the spectral anisotropy is consistent with the model of Shebalin et al. [1983] in which the spectrum broadens in the perpendicular wavenumber direction, the anisotropy being greater for smaller wavenumbers. Here this effect is seen for both incompressible and polytropic compressible MHD. In contrast, the longitudinal (compressive) velocity fluctuations remain isotropic. Variance anisotropy is observed for low plasma beta compressible MHD but not for incompressible MHD. Solar wind observations are qualitatively consistent with both variance and spectral anisotropies of the type discussed here.
Ghosh Sanjoy
Matthaeus William H.
Oughton Sean
Roberts Daniel A.
No associations
LandOfFree
Anisotropic three-dimensional MHD turbulence does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Anisotropic three-dimensional MHD turbulence, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Anisotropic three-dimensional MHD turbulence will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1337075