Generation of non-Gaussian statistics and coherent structures in ideal magnetohydrodynamics

Details Generation of non-Gaussian statistics and coherent structures in ideal magnetohydrodynamics Generation of non-Gaussian statistics and coherent structures in ideal magnetohydrodynamics

Dec 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009agufmsm42b..05m&link_type=abstract

American Geophysical Union, Fall Meeting 2009, abstract #SM42B-05

Physics

Plasma Physics

[7524] Solar Physics, Astrophysics, And Astronomy / Magnetic Fields, [7811] Space Plasma Physics / Discontinuities, [7863] Space Plasma Physics / Turbulence

Scientific paper

The emergence of small-scale coherent structures is a well-known feature of turbulence, which is usually associated with inertial range signatures of nonuniform dissipation, and the associated emergence of non-Gaussian statistics. In steady-state these structures cause departures from self-similarity and the phenomenon of intermittency. Spectral method simulations of ideal magnetohydrodynamics (MHD) are used to investigate production of coherent small-scale structures in two-dimensional MHD. The near-identical growth of non-Gaussianity in ideal and nonideal cases suggests that generation of coherent structures and breaking of self-similarity are essentially ideal processes. This has important implications for understanding the origin of intermittency in turbulence. In particular, solar wind turbulence is estimated to be old enough that at least some nonGaussian features might have arisen during transit to 1 AU. [See Phys. Plasmas 16, 080703 (2009)]

Affiliated with

Also associated with

No associations

Rating

Generation of non-Gaussian statistics and coherent structures in ideal magnetohydrodynamics 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 Generation of non-Gaussian statistics and coherent structures in ideal magnetohydrodynamics, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Generation of non-Gaussian statistics and coherent structures in ideal magnetohydrodynamics will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1880298