Quasiparticle approach to the modulational instability of drift waves coupling to zonal flows

R. Trines, R. Bingham, L.O. Silva, J.T. Mendonça, P.K. Shukla, W.B. Mori

Research output: Contribution to journalArticle

29 Citations (Scopus)

Abstract

The interaction between broadband drift mode turbulence and zonal flows has been studied through the wave-kinetic approach. Simulations have been conducted in which a particle-in-cell representation is used for the quasiparticles, while a fluid model is employed for the plasma. The interactions have been studied in a plasma edge configuration which has applications in both tokamak physics and magnetopause boundary layer studies. Simulation results show the development of a zonal flow through the modulational instability of the drift wave distribution, as well as the existence of solitary zonal flow structures about an ion gyroradius wide, drifting towards steeper relative density gradients.
LanguageEnglish
Pages165002-1
Number of pages165001
JournalPhysical Review Letters
Volume94
Issue number16
DOIs
Publication statusPublished - Apr 2005

Fingerprint

magnetopause
boundary layers
simulation
turbulence
interactions
broadband
gradients
physics
fluids
kinetics
configurations
cells
ions

Keywords

  • drift waves
  • zonal flows
  • wave kinetics
  • plasmas

Cite this

Trines, R. ; Bingham, R. ; Silva, L.O. ; Mendonça, J.T. ; Shukla, P.K. ; Mori, W.B. / Quasiparticle approach to the modulational instability of drift waves coupling to zonal flows. In: Physical Review Letters. 2005 ; Vol. 94, No. 16. pp. 165002-1.
@article{67576e94b4d14ae9b059e983beed0140,
title = "Quasiparticle approach to the modulational instability of drift waves coupling to zonal flows",
abstract = "The interaction between broadband drift mode turbulence and zonal flows has been studied through the wave-kinetic approach. Simulations have been conducted in which a particle-in-cell representation is used for the quasiparticles, while a fluid model is employed for the plasma. The interactions have been studied in a plasma edge configuration which has applications in both tokamak physics and magnetopause boundary layer studies. Simulation results show the development of a zonal flow through the modulational instability of the drift wave distribution, as well as the existence of solitary zonal flow structures about an ion gyroradius wide, drifting towards steeper relative density gradients.",
keywords = "drift waves, zonal flows, wave kinetics, plasmas",
author = "R. Trines and R. Bingham and L.O. Silva and J.T. Mendon{\cc}a and P.K. Shukla and W.B. Mori",
year = "2005",
month = "4",
doi = "10.1103/PhysRevLett.94.165002",
language = "English",
volume = "94",
pages = "165002--1",
journal = "Physical Review Letters",
issn = "0031-9007",
number = "16",

}

Quasiparticle approach to the modulational instability of drift waves coupling to zonal flows. / Trines, R.; Bingham, R.; Silva, L.O.; Mendonça, J.T.; Shukla, P.K.; Mori, W.B.

In: Physical Review Letters, Vol. 94, No. 16, 04.2005, p. 165002-1.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Quasiparticle approach to the modulational instability of drift waves coupling to zonal flows

AU - Trines, R.

AU - Bingham, R.

AU - Silva, L.O.

AU - Mendonça, J.T.

AU - Shukla, P.K.

AU - Mori, W.B.

PY - 2005/4

Y1 - 2005/4

N2 - The interaction between broadband drift mode turbulence and zonal flows has been studied through the wave-kinetic approach. Simulations have been conducted in which a particle-in-cell representation is used for the quasiparticles, while a fluid model is employed for the plasma. The interactions have been studied in a plasma edge configuration which has applications in both tokamak physics and magnetopause boundary layer studies. Simulation results show the development of a zonal flow through the modulational instability of the drift wave distribution, as well as the existence of solitary zonal flow structures about an ion gyroradius wide, drifting towards steeper relative density gradients.

AB - The interaction between broadband drift mode turbulence and zonal flows has been studied through the wave-kinetic approach. Simulations have been conducted in which a particle-in-cell representation is used for the quasiparticles, while a fluid model is employed for the plasma. The interactions have been studied in a plasma edge configuration which has applications in both tokamak physics and magnetopause boundary layer studies. Simulation results show the development of a zonal flow through the modulational instability of the drift wave distribution, as well as the existence of solitary zonal flow structures about an ion gyroradius wide, drifting towards steeper relative density gradients.

KW - drift waves

KW - zonal flows

KW - wave kinetics

KW - plasmas

UR - http://dx.doi.org/10.1103/PhysRevLett.94.165002

U2 - 10.1103/PhysRevLett.94.165002

DO - 10.1103/PhysRevLett.94.165002

M3 - Article

VL - 94

SP - 165002

EP - 165001

JO - Physical Review Letters

T2 - Physical Review Letters

JF - Physical Review Letters

SN - 0031-9007

IS - 16

ER -