Effects of Collisional Zonal Flow Damping on Turbulent Transport | Zendy

P.H. Diamond | Zendy; T.S. Hahm | Zendy; W. M. Tang | Zendy; W.W. Lee | Zendy; Zhihong Lin | Zendy

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Effects of Collisional Zonal Flow Damping on Turbulent Transport

Author(s) -

P.H. Diamond,

T.S. Hahm,

W. M. Tang,

W.W. Lee,

Zhihong Lin

Publication year - 1999

Language(s) - English

Resource type - Reports

DOI - 10.2172/13839

Subject(s) - microturbulence , turbulence , zonal flow (plasma) , physics , coulomb collision , ion , plasma , toroid , collision frequency , mechanics , particle (ecology) , atomic physics , flow (mathematics) , coulomb , tokamak , nuclear physics , geology , quantum mechanics , oceanography , electron

Results from 3D global gyrokinetic particle simulations of ion temperature gradient driven microturbulence in a toroidal plasma show that the ion thermal transport level in the interior region exhibits significant dependence on the ion-ion collision frequency even in regimes where the instabilities are collisionless. This is identified as arising from the Coulomb collisional damping of turbulence-generated zonal flows

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