Trend of the normalized specific angular momentum λ_ϕ along a streamline originating from 1 au in a disk around a 1 M_⊙ star following models L2 (blue) and N5 (purple), for separations from the source z/r₀ = 10, 20, 30, 40, 50 from left to right, with an additional point at z/r₀ = 100 for model N5. The superposed red crosses illustrate the trend for λ_ϕ along shell B2 as in Table 1, after normalization of r, V_p, and V_ϕ by the derived average footpoint radius ${\overline{r}}_0$ and corresponding Keplerian velocity, for M_⋆ = 2.1 M_⊙ (see Section 5.4).