Figure 2
From: A simplified model to estimate nonlinear turbulent transport by linear dynamics in plasma turbulence
Temperature gradient dependence of (a) turbulent heat diffusivity \(\bar{\chi }_{\textrm{i}}/\chi _{\textrm{i}}^{\textrm{GB}}\) (symbols) and the maximum instability growth rate \(\gamma _{\textrm{max}}\) (lines), and (b) ratio of the zonal–flow intensity to the total turbulence intensity \(\bar{\mathcal{Z}}/(\bar{\mathcal{T}}+\bar{\mathcal{Z}})\).
