This paper presents a theory for the collapse of the edge zonal shear layer, as observed at
the density limit at low β. This paper investigates the scaling of the transport and mean …

The scale selection and feedback loops for the formation and sustainment of a mesoscopic
staircase profile structure are investigated for drift wave-zonal flow turbulence. A mean field …

This paper presents a theory for the formation and evolution of coupled density staircases
and zonal shear profiles in a simple model of drift-wave turbulence. Density, vorticity, and …

We report the observation of a transport bifurcation that occurs by spontaneous self-
organization of a drift-wave and shear flow system in a linear plasma device. As we increase …

We propose a new reduced fluid model for the study of the drift wave–zonal flow dynamics in
magnetically confined plasmas. Our model can be viewed as an extension of the classic …

This paper describes the ecology of drift wave turbulence and mean flows in the coupled
drift-ion acoustic wave plasma of a CSDX linear device. A 1D reduced model that studies the …

Negative compressibility ion temperature gradient (ITG) turbulence in a linear plasma device
controlled shear de-correlation experiment can induce a negative viscosity increment …

The results of modeling studies of an enhanced confinement in the drift wave turbulent
plasma of the CSDX linear device are presented. The mechanism of enhanced confinement …

The inward particle flux associated with the global long-lived mode (LLM) during the L–I–H
transition on HL-2A tokamak has been measured. The inward particle flux arises from the …

The coupling of turbulence-driven azimuthal and axial flows in a linear device absent
magnetic shear (Controlled Shear Decorrelation Experiment) is investigated. In particular …