Phys. Rev. Lett. 74, 706–709 (1995)Nonlinear Instability Mechanism in 3D Collisional Drift-Wave TurbulenceReceived 19 August 1994; published in the issue dated 30 January 1995 Numerical simulations of 3D collisional drift-wave turbulence reveal a behavior basically different from that found in previous 2D studies. The linear instability saturates due to energy transfer to small kz leading to the formation of convective cells. The turbulence is sustained by nonlinear transfer processes between kz=0 and kz≠0 modes, the latter acting as a catalyst. The system tends to relax to a nonturbulent poloidal shear flow. © 1995 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.74.706
DOI:
10.1103/PhysRevLett.74.706
PACS:
52.35.Ra, 52.35.Kt, 52.35.Mw
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