Open AccessDiamagnetic effect on zonal flow generation in interchange mode turbulence
Author(s) -
Lu He-Lin,
Xiaodong Peng,
Qiu Xiao-Ming,
Shun-Jin Wang
Publication year - 2009
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.58.6387
Subject(s) - diamagnetism , turbulence , zonal flow (plasma) , nonlinear system , physics , flow (mathematics) , mechanics , mode (computer interface) , plasma , magnetic field , quantum mechanics , computer science , tokamak , operating system
The simple low-dimensional model proposed by Guzdar and co-workers has been extended and applied to study the nonlinear diamagnetic effect on zonal flow in interchange turbulence. Based on the numerical solution to the derived nonlinear equations, we can draw the conclusion: diamagnetic effect suppresses the enhancement of the normal polarized drift nonlinearity, which could lead to the damping of zonal flow.