Periodic driving of plasma turbulence

M S  Baptista; I L  Caldas; M V A P  Heller; A A  Ferreira

doi:10.1063/1.1561612

Periodic driving of plasma turbulence

M S Baptista, I L Caldas, M V A P Heller, A A Ferreira

Physics

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

8 Citations (Scopus)

Abstract

Tools to characterize three important characteristics of turbulence are proposed: Structures-within-structures, intermittent amplitude bursting, and turbulence complexity. These tools are applied to show that the injection of a rf wave into the plasma confined on the Tokamak Chauffage Alfven Bresilien (TCABR) [R. M. O. Galvao, V. Bellintani, Jr., R. D. Bengtson , Plasma Phys. Controlled Fusion 43, A299 (2001)] decreases plasma edge turbulence, although not completely destroy it, by destroying the only two types of time structures found in the data. Both structures present multiscaling spectra, with infinitely many possible scalings. So, according to this analysis, complexity of this turbulence is mainly due to the multiscaling character of the oscillations. (C) 2003 American Institute of Physics.

Original language	English
Pages (from-to)	1283-1290
Number of pages	8
Journal	Physics of Plasmas
Volume	10
Issue number	5
DOIs	https://doi.org/10.1063/1.1561612
Publication status	Published - May 2003

Keywords

self-similarity
edge
attractors
fractals
systems

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10.1063/1.1561612

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title = "Periodic driving of plasma turbulence",

abstract = "Tools to characterize three important characteristics of turbulence are proposed: Structures-within-structures, intermittent amplitude bursting, and turbulence complexity. These tools are applied to show that the injection of a rf wave into the plasma confined on the Tokamak Chauffage Alfven Bresilien (TCABR) [R. M. O. Galvao, V. Bellintani, Jr., R. D. Bengtson , Plasma Phys. Controlled Fusion 43, A299 (2001)] decreases plasma edge turbulence, although not completely destroy it, by destroying the only two types of time structures found in the data. Both structures present multiscaling spectra, with infinitely many possible scalings. So, according to this analysis, complexity of this turbulence is mainly due to the multiscaling character of the oscillations. (C) 2003 American Institute of Physics.",

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doi = "10.1063/1.1561612",

language = "English",

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T1 - Periodic driving of plasma turbulence

AU - Baptista, M S

AU - Caldas, I L

AU - Heller, M V A P

AU - Ferreira, A A

PY - 2003/5

Y1 - 2003/5

N2 - Tools to characterize three important characteristics of turbulence are proposed: Structures-within-structures, intermittent amplitude bursting, and turbulence complexity. These tools are applied to show that the injection of a rf wave into the plasma confined on the Tokamak Chauffage Alfven Bresilien (TCABR) [R. M. O. Galvao, V. Bellintani, Jr., R. D. Bengtson , Plasma Phys. Controlled Fusion 43, A299 (2001)] decreases plasma edge turbulence, although not completely destroy it, by destroying the only two types of time structures found in the data. Both structures present multiscaling spectra, with infinitely many possible scalings. So, according to this analysis, complexity of this turbulence is mainly due to the multiscaling character of the oscillations. (C) 2003 American Institute of Physics.

AB - Tools to characterize three important characteristics of turbulence are proposed: Structures-within-structures, intermittent amplitude bursting, and turbulence complexity. These tools are applied to show that the injection of a rf wave into the plasma confined on the Tokamak Chauffage Alfven Bresilien (TCABR) [R. M. O. Galvao, V. Bellintani, Jr., R. D. Bengtson , Plasma Phys. Controlled Fusion 43, A299 (2001)] decreases plasma edge turbulence, although not completely destroy it, by destroying the only two types of time structures found in the data. Both structures present multiscaling spectra, with infinitely many possible scalings. So, according to this analysis, complexity of this turbulence is mainly due to the multiscaling character of the oscillations. (C) 2003 American Institute of Physics.

KW - self-similarity

KW - edge

KW - attractors

KW - fractals

KW - systems

U2 - 10.1063/1.1561612

DO - 10.1063/1.1561612

M3 - Article

SN - 1070-664X

VL - 10

SP - 1283

EP - 1290

JO - Physics of Plasmas

JF - Physics of Plasmas

IS - 5

ER -

Periodic driving of plasma turbulence

Abstract

Keywords

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