Time series of total energy density and the rms velocity and magnetic fields. (a) Volume-averaged total energy density ⟨E_tot⟩ normalized by its value at t = 0 from run P1-6H. The inset shows the volume-averaged rms value of the azimuthal flow . The red (blue) part of the curve indicates the transient (statistically stationary) part of the time series, where indicates the starting time for the time averaging. τ_KH indicates the Kelvin-Helmholtz timescale. (b) Same as above, but for the corresponding MHD run P1-6M. The inset shows in addition to . The black (green) parts of the data for indicate transient (statistically stationary) parts. (c) Same as panel a, but for run P01-3H.