Plot of average perturbed energy in log scale with time. The slope of the dashed line corresponds to the maximum linear growth rate for this system.20
(a)–(d) Color contours of in the plane z = 0 at different times showing generation of turbulence in the shear layer and its spreading, and (e) Color contours of in different two dimensional planes and stream lines of electron flow represented by few thick lines showing the three dimensional character of the turbulence.20 The color bar is same for (a)–(e).
Log-scale plot of power spectrum densities (a) , (b) , and (c) with , , and , respectively, for the variable . See text for the definition of , , and .
Plot of (a) rms wave numbers , , and , and (b) anisotropy factors , , and with time for the variable .
Log-scale plot of and averaged over time in stationary state of the two and three dimensional simulations.
Plot of rms wave numbers and for the variable with time for two and three dimensional simulations.
Mean flow profile of electron velocity at various times for (a) three dimensional simulations (b) two dimensional simulations.
Growth rates of the two and three dimensional instabilities with time corresponding to the nonlinearly modified mean velocity profiles in the simulations.
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