Azimuthal inhomogeneity of turbulence structure and its impact on intermittent particle transport in linear magnetized plasmas
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Abstract
0000-0001-5669-1937
Fluctuation component in the turbulence regime is found to be azimuthally localized at a phase of the global coherent modes in a linear magnetized plasma PANTA. Spatial distribution of squared bicoherence is given in the azimuthal cross section as an indicator of nonlinear energy transfer function from the global coherent mode to the turbulence. Squared bicoherence is strong at a phase where the turbulence amplitude is large. As a result of the turbulence localization, time evolution of radial particle flux becomes bursty. Statistical features such as skewness and kurtosis are strongly modified by the localized turbulence component, although contribution to mean particle flux profile is small.
Journal
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- Physics of Plasmas
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Physics of Plasmas 22 (11), 112301-, 2015-11-03
AIP Publishing
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Details 詳細情報について
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- CRID
- 1050571948037749248
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- NII Article ID
- 120007176995
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- NII Book ID
- AA10987555
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- ISSN
- 1070664X
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- HANDLE
- 10655/00012732
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- Text Lang
- en
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- Article Type
- journal article
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- Data Source
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- IRDB
- CiNii Articles