Plasma and Fusion Research
Online ISSN : 1880-6821
ISSN-L : 1880-6821
Regular Articles
Effects of the Stochasticity on Transport Properties in High-β LHD
Yasuhiro SUZUKIKiyomasa WATANABEHisamichi FUNABASatrou SAKAKIBARANoriyoshi NAKAJIMANobuyoyshi OHYABULHD experiment group
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2009 Volume 4 Pages 036

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Abstract

Effects of the stochasticity of magnetic field lines on transport properties are investigated. In a high-β LHD plasma, the structure of field lines in the peripheral region becomes stochastic by finite-β effects but the finite pressure gradient exists in that region. The radial diffusion coefficient and the Kolmogorov length of stochastic field lines are estimated. In the stochastic region, the radial diffusion of stochastic field lines becomes large and the Kolmogorov length becomes short due to increasing β. In that region, the radial heat transport becomes large due to the stochasticity of field lines.

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© 2009 by The Japan Society of Plasma Science and Nuclear Fusion Research
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