Poloidal velocity as a function of the distance to the sink (mainly in the vertical direction), in a cylindrical selection of cells with r_cyl < 100 AU. Negative radial velocities have been masked out. Velocities are obtained as averages over a distance bin. A and B label the northern and southern outflow, respectively, and the vertical lines indicate the positions where the poloidal velocity equals the Alfvén poloidal velocity (averaged over the same distance bin). Run  NOTURB, M = 10 M_⊙.