Off-diagonal stresses from a representative set of runs. Diamonds: normalized Reynolds stress components (panel a), (panel b), and (panel c) as functions of θ from Sets A (black), E (red), H (blue), AA (green), and GG (magenta). Curves: fits with the Λ coefficients presented in Sect. 4.3.2. The insets show the corresponding stresses from the respective latitudinal maxima θ = 90° (panel a), θ = 60° (panel b), and θ = 50° (panel c) as functions of Ω_⋆, where data from Sets A–H (black) and AA–GG (red) are indicated.