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Anisotropic truncation for turbulent transport and zonal flows in the Hasegawa-Wakatani system
Pierre L. Guillon, Robin Angles, Yanick Sarazin +1
Reduced models based on an anisotropic truncation of the Fourier space, retaining only a few poloidal wave-numbers while keeping the full radial resolution, are developed and first…
Self-organisation through layering of -plane like turbulence in plasmas and geophysical fluids
P. L. Guillon, G. Dif-Pradalier, Y. Sarazin +2
Staircase formation and layering is studied in simplified, potential vorticity conserving models of plasmas and geophysical fluids, by investigating turbulent self-organisation and…
Flux Jamming, Phase Transitions and Layering in Turbulent Magnetized Plasma
P. H. Diamond, Y. Kosuga, P. L. Guillon +1
This paper discusses transport barrier formation and layering as consequences of jam formation. Extensive use is made of analogies with the theory of traffic flow in one dimension.…
Flux-driven turbulent transport using penalisation in the Hasegawa-Wakatani system
Pierre L. Guillon, Özgür D. Gürcan, Guilhem Dif-Pradalier +2
First numerical results from the newly-developed pseudo-spectral code P-FLARE (Penalised FLux-driven Algorithm for REduced models) are presented. This flux-driven turbulence/transp…