Stream and non-stream radial profiles. The left, middle, and right panels respectively show the radial mass flux (F_r, in units of ℳ/t_dyn), average radial velocity (V_r, in units of V_rot), and mass (M, in units of ℳ), as functions of radius r, normalized by R_d, for all cold gas (black), streams (blue), and non-streams (red) in VELA 7 at z = 1.5. The top row presents results from the metallicity-based classification, and the bottom row corresponds to the streamline-based classification. In both cases, the total radial mass flux of cold gas is dominated by streams at large radii (beyond ∼0.7 R_d) and by non-streams at small radii (within ∼0.3 R_d). In the metallicity-based selection, the dominance of stream flux at large r primarily reflects the higher mass fraction of streams in that region. In contrast, the streamline-based method shows roughly equal masses for streams and non-streams at large r; however, the non-stream mass flux remains low. This is because the inflowing and outflowing contributions from non-stream gas nearly cancel out (see Fig. 10), leaving streams as the main net contributor to the total radial mass flux.