Inverse of the granulation timescale, b^′, plotted against the oscillation timescale v_max, estimated from the three 3D simulations listed in Table 2. We note that v_max was calculated using the asteroseismic scaling relation based on the fundamental parameters of the simulations. The gold solid line shows the fitted power law for model H from Fig. 6 with uncertainties indicated by the shaded bands, but scaled to pass the solar simulation.