Figure 2
From: Eddy, drift wave and zonal flow dynamics in a linear magnetized plasma

Two-dimensional filled contour structure of (a) the ion saturation fluctuation (δIis) and (b) the vorticity () at τ = 0. The contour lines indicate the floating potential fluctuation (solid line or dotted line indicate positive or negative value). (c) Radial location of the solitary eddy (hatched region) overlapped with the azimuthal zonal flow (VZF) at τ = −0.7 ms and 0.5 ms. (d) Time evolution of zonal perturbation (Black line) and its acceleration (Red line). Positive VZF indicates the electron diamagnetic direction. (e) Potential fluctuation at the azimuthal position of the solitary eddy (at r = 3.5 and 4 cm). (f) Vorticity, averaged radially (r = 2.5–4.5 cm) and azimuthally at the solitary eddy location.