Turbulent ExB advection of charged test particles with large gyroradii

Journal Article · Sun Oct 15 00:00:00 EDT 2006 · Physics of Plasmas

DOI:https://doi.org/10.1063/1.2360173· OSTI ID:20860300

Hauff, T; Jenko, F ^[1]

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1. Max-Planck-Institut fuer Plasmaphysik, EURATOM Association, 85748 Garching (Germany)

The turbulent ExB advection of charged test particles with large gyroradii is investigated. To this aim, a recently developed theory--the so-called decorrelation trajectory method--is used together with direct numerical simulations and analytical calculations. It is found that for Kubo numbers larger than about unity, the particle diffusivity is almost independent of the gyroradius as long as the latter does not exceed the correlation length of the electrostatic potential. The underlying physical mechanisms leading to this surprising and initially counterintuitive behavior are identified.

• OSTI ID: 20860300
• Journal Information: Physics of Plasmas, Vol. 13, Issue 10; Other Information: DOI: 10.1063/1.2360173; (c) 2006 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 1070-664X
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
ADVECTION
CORRELATIONS
ELECTROMAGNETIC FIELDS
PLASMA
PLASMA POTENTIAL
PLASMA SIMULATION
PLASMA WAVES
RADIATION TRANSPORT
TEST PARTICLES
TURBULENCE