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Spectral energy transfer and generation of turbulent structures in toroidal plasma

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Date

2004

Authors

Xia, Hua
Shats, Michael

Journal Title

Journal ISSN

Volume Title

Publisher

American Institute of Physics (AIP)

Abstract

The nonlinear energy cascades in turbulent spectra was analyzed using the spectral energy transfer and the amplitude correlation technique. It was shown that an inverse energy cascade of the spectral energy is responsible for the generation of the large scale coherent structures dominating turbulent spectra. The zonal flows present in these structures are also generated via the inverse cascade. The zonal flows are generated with the increased strength in the nonlinear energy transfer.

Description

Keywords

Keywords: Approximation theory; Correlation methods; Data reduction; Energy transfer; Heat transfer; Magnetization; Nonlinear systems; Plasma turbulence; Spectrum analysis; Tokamak devices; Power transfer function estimation (PTF); Turbulent structures; Zonal flows

Citation

URI

http://hdl.handle.net/1885/80971

Collections

ANU Research Publications

Source

Physics of Plasmas

Type

Journal article

Book Title

Entity type

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DOI

Restricted until

2037-12-31

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01_Xia_Spectral_energy_transfer_and_2004.pdf (1.23 MB)

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