Turbulence and structures in dispersive MHD

Details Turbulence and structures in dispersive MHD Turbulence and structures in dispersive MHD

Dec 2008

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008agufmsh41c..06p&link_type=abstract

American Geophysical Union, Fall Meeting 2008, abstract #SH41C-06

Physics

2149 Mhd Waves And Turbulence (2752, 6050, 7836), 2159 Plasma Waves And Turbulence, 2164 Solar Wind Plasma, 2728 Magnetosheath

Scientific paper

Fluid models including kinetic effects are numerically integrated in one space dimension in order to study the dynamics of randomly driven parallel or kinetic Alfvén waves. Turbulent transfer is strongly inhibited by dispersion, but the intermittent formation of small-scale structures provides an additional channel of energy dissipation. Piecewise power-law spectra are observed, suggesting that small-scale coherent structures could also contribute to the algebraic "dissipation range" of solar wind and magnetosheath turbulence.

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