Effects of plasma flows on particle diffusion in stochastic magnetic fields

Journal Article · Mon Jul 01 00:00:00 EDT 1996 · Physical Review. E, Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics

DOI:https://doi.org/10.1103/PhysRevE.54.791· OSTI ID:285918

Vlad, M; Spineanu, F; Misguich, J H; Balescu, R ^[1]

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1. Association Euratom-Commissariat a l`Energie Atomique sur la Fusion, Departement de Recherche sur la Fusion Contro1ee, Centre d`Etudes de Cadarache, 13108 Saint-Paul-lez-Durance Cedex (France)

The study of collisional test particle diffusion in stochastic magnetic fields is extended to include the effects of the macroscopic flows of the plasma (drifts). We show that a substantial amplification of the diffusion coefficient can be obtained. This effect is produced by the combined action of the parallel collisional velocity and of the average drifts. The perpendicular collisional velocity influences the effective diffusion only in the limit of small average drifts. {copyright} {ital 1996 The American Physical Society.}

• OSTI ID: 285918
• Journal Information: Physical Review. E, Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics, Vol. 54, Issue 1; Other Information: PBD: Jul 1996
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION
COLLISIONAL PLASMA
TRANSPORT THEORY
PLASMA SIMULATION
DIFFUSION
MAGNETIC FIELDS
STOCHASTIC PROCESSES
PLASMA DRIFT
LAGRANGIAN FUNCTION