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Bifurcation in electrostatic resistive drift wave turbulence

Numata, Ryusuke; Ball, Rowena; Dewar, Robert L.


The Hasegawa-Wakatani equations, coupling plasma density and electrostatic potential through an approximation to the physics of parallel electron motions, are a simple model that describes resistive drift wave turbulence. We present numerical analyses of bifurcation phenomena in the model that provide new insights into the interactions between turbulence and zonal flows in the tokamak plasma edge region. The simulation results show a regime where, after an initial transient, drift wave...[Show more]

CollectionsANU Research Publications
Date published: 2007-10-26
Type: Journal article
Source: Physics of Plasmas
DOI: 10.1063/1.2796106


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