Cascade generation of zonal flows by the drift wave turbulence

Alexander M. Balk; Vladimir E. Zakharov

doi:10.1016/j.physleta.2009.09.003

Cascade generation of zonal flows by the drift wave turbulence

Alexander M. Balk, Vladimir E. Zakharov

Mathematics

Research output: Contribution to journal › Article › peer-review

5 Scopus citations

Abstract

The purpose of this research is to investigate the formation of zonal flows that can lead to the enhanced confinement of plasma in tokamaks. We show that zonal flows can be effectively formed by resonance triad interactions in the process of the inverse cascade. We discuss what energy sources are more effective for the formation of zonal flows.

Original language	English (US)
Pages (from-to)	4049-4052
Number of pages	4
Journal	Physics Letters, Section A: General, Atomic and Solid State Physics
Volume	373
Issue number	44
DOIs	https://doi.org/10.1016/j.physleta.2009.09.003
State	Published - Oct 26 2009

Keywords

Cascade
Drift waves in plasmas
Similarity solutions
Triad resonances
Zonal flows in plasmas
Zonal jets

ASJC Scopus subject areas

Physics and Astronomy(all)

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10.1016/j.physleta.2009.09.003

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title = "Cascade generation of zonal flows by the drift wave turbulence",

abstract = "The purpose of this research is to investigate the formation of zonal flows that can lead to the enhanced confinement of plasma in tokamaks. We show that zonal flows can be effectively formed by resonance triad interactions in the process of the inverse cascade. We discuss what energy sources are more effective for the formation of zonal flows.",

keywords = "Cascade, Drift waves in plasmas, Similarity solutions, Triad resonances, Zonal flows in plasmas, Zonal jets",

author = "Balk, {Alexander M.} and Zakharov, {Vladimir E.}",

note = "Funding Information: We would like to thank the Banff International Research Station (Canada) for holding the Workshop “Singular Phenomena in Nonlinear Optics, Hydrodynamics and Plasmas” (October 2008). A.B. wishes to thank Patrick Diamond for valuable discussions and the Kavli Institute for Theoretical Physics, University of California Santa Barbara, for hospitality and support via the National Science Foundation Grant PHY05-51164 . Funding Information: This Letter is based upon work supported by the National Science Foundation under Grants DMS-0405905 (A.B.) and DMS-0404577 (V.Z.). ",

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AU - Zakharov, Vladimir E.

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KW - Similarity solutions

KW - Triad resonances

KW - Zonal flows in plasmas

KW - Zonal jets

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