Charged-particle motion in multidimensional magnetic-field turbulence

Details Charged-particle motion in multidimensional magnetic-field turbulence Charged-particle motion in multidimensional magnetic-field turbulence

Aug 1994

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994apj...430l.137g&link_type=abstract

The Astrophysical Journal (ISSN 0004-637X), vol. 430, no. 2, pt. 2, p. L137-L140

Statistics

Computation

59

Charged Particles, Fokker-Planck Equation, Kolmogorov Theory, Magnetohydrodynamic Turbulence, Motion Simulation, Analytic Functions, Flow Distribution, Particle Trajectories, Three Dimensional Models

Scientific paper

We present a new analysis of the fundamental physics of charged-particle motion in a turbulent magnetic field using a numerical simulation. The magnetic field fluctuations are taken to be static and to have a power spectrum which is Kolmogorov. The charged particles are treated as test particles. It is shown that when the field turbulence is independent of one coordinate (i.e., k lies in a plane), the motion of these particles across the magnetic field is essentially zero, as required by theory. Consequently, the only motion across the average magnetic field direction that is allowed is that due to field-line random walk. On the other hand, when a fully three-dimensional realization of the turbulence is considered, the particles readily cross the field. Transport coefficients both along and across the ambient magnetic field are computed. This scheme provides a direct computation of the Fokker-Planck coefficients based on the motions of individual particles, and allows for comparison with analytic theory.

Affiliated with

Also associated with

No associations

Rating

Charged-particle motion in multidimensional magnetic-field 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 Charged-particle motion in multidimensional magnetic-field turbulence, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Charged-particle motion in multidimensional magnetic-field turbulence will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1494383