Structure of the flow and of the magnetic field after ∼ 2τ_ED. Left panel: coloured contours of the differential rotation normalised to the top value and streamlines (in black) of the meridional flow. Right panel: norm of the poloidal field normalised to its initial value at the pole of the outer sphere in colour with the poloidal field lines in black. The parameters are E = 10⁻⁵, P_r(N₀/Ω₀)² = 10⁻¹, ρ_i/ρ₀ = 20.85, P_m = 10², Re_c = 3 and L_u = 5 × 10⁴ (run Q16 of Table 1).