Zonal flow generation in collisionless trapped electron mode turbulence

Abstract

In the present work the generation of zonal flows in collisionless trapped electron mode (TEM) turbulence is studied analytically. A reduced model for TEM turbulence is utilized based on an advanced fluid model for reactive drift waves. An analytical expression for the zonal flow growth rate is derived and compared with the linear TEM growth, and its scaling with plasma parameters is examined for typical tokamak parameter values.

20 pages, 4 figures

References in corpus (2)

• Generalized Action Invariants for Drift Waves-Zonal Flow Systems
• Zonal flow generation in ion temperature gradient mode turbulence

Cited by in corpus (10)

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• Dynamics of Zonal Flows: Failure of Wave-Kinetic Theory, and New Geometrical Optics Approximations
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• Mean sheared flow and parallel ion motion effects on zonal flow generation in ion-temperature-gradient mode turbulence
• Impact of impurities on zonal flow driven by trapped electron mode turbulence
• High Frequency Geodesic Acoustic Modes in Electron Temperature Gradient Mode Turbulence
• Secondary instability of electromagnetic ion-temperature-gradient modes for zonal flow generation
• Effects of parallel ion motion on zonal flow generation in ion-temperature-gradient mode turbulence
• Quasilinear analysis of the zonal flow back-reaction on ion-temperature-gradient mode turbulence
• High Frequency Geodesic Acoustic Modes in Electron Scale Turbulence