Evidence for two-dimensional inertial turbulence in a cosmic-scale low-beta plasma

Computer Science – Sound

Scientific paper

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

7

Auroral Zones, Earth Magnetosphere, Magnetohydrodynamic Flow, Plasma Turbulence, Two Dimensional Flow, Balloon Sounding, Collisionless Plasmas, Electric Fields, Flow Velocity, Navier-Stokes Equation, Power Spectra, Satellite Observation, Solar Wind, Turbulent Flow

Scientific paper

Magnetospheric electric-field power spectral densities measured from high-altitude balloons and the Hawkeye 1 satellite are combined in wavenumber space and exhibit a power-law spectrum with index -1.6 + or -0.3 below a wavenumber of 0.05 reciprocal km and index -2.8 + or -0.3 above 2 reciprocal km. This spectrum agrees with that predicted for the inertial subrange of an isotropic homogeneous two-dimensional fluid and for a two-dimensional plasma when energy enters the system at the spectral knee and there exists a viscous dissipation mechanism at large wavenumbers. The wavelength of the spectral knee corresponds to that of folds and curls in the aurora and may be due to an instability of the auroral particle beams.

No associations

LandOfFree

Say what you really think

Search LandOfFree.com for scientists and scientific papers. Rate them and share your experience with other people.

Rating

Evidence for two-dimensional inertial turbulence in a cosmic-scale low-beta plasma 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 Evidence for two-dimensional inertial turbulence in a cosmic-scale low-beta plasma, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Evidence for two-dimensional inertial turbulence in a cosmic-scale low-beta plasma will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFWR-SCP-O-1034418

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.