Comparison with disk-instability-based transport models at different radii. For each of the VELA disks, the left and middle panels plot V_r/V_rot against V_rot/σ_r at r = 0.5 R_d and r = R_d, respectively, with the blue, round points. The corresponding disk-averaged quantities are shown in the right panel. Red squares indicate the median values within bins of x (where x = V_rot/σ_r or ⟨V_rot⟩/⟨σ_r⟩, as applicable), with the vertical error bars highlighting the 16^th − 84^th percentile ranges and the horizontal error bars showing the bin widths. The disk-instability-based model predictions (see Section 4) are shown with the different curves, as labeled, assuming Q = 1. For most of the VELA disks, these models predict higher levels of inflow than that seen in the simulations, not only in a disk-averaged sense but also locally at different r.