Zonal Flow Dynamics and Size-scaling of Anomalous Transport
Zonal Flow Dynamics and Size-scaling of Anomalous Transport
Nonlinear equations for the slow space-time evolution of the radial drift wave envelope and zonal flow amplitude have been self-consistently derived for a model nonuniform tokamak equilibrium within the coherent 4-wave drift wave-zonal flow modulation interaction model of Chen, Lin, and White [Phys. Plasmas 7 (2000) 3129]. Solutions clearly demonstrate turbulence spreading due to nonlinearly enhanced dispersiveness and, consequently, the device-size dependence of the saturated wave intensities and transport coefficients.
- European Atomic Energy Community United Kingdom
- Princeton Plasma Physics Laboratory United States
- University of North Texas System United States
- University of California, Irvine United States
Modulation, Turbulence, Fluctuations Drift Waves, Drift Waves, Amplitudes, Fluctuations, Transport, 70 Plasma Physics And Fusion Technology, 530, Transport Theory, Space-Time
Modulation, Turbulence, Fluctuations Drift Waves, Drift Waves, Amplitudes, Fluctuations, Transport, 70 Plasma Physics And Fusion Technology, 530, Transport Theory, Space-Time
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