Velocity dispersion measured by the galaxies within a projected radius of R normalized by the velocity dispersion within 1.2 Abell radii as a function of the projected radius for the simulated sample. The results are only based on the simulated sample of the 21 clusters. The colors and symbols have the same meaning as those in Fig. 3. The curves are the local regression non-parametric fits. We do not include the values for the clusters having fewer than 10 members within the projected radius we are interested. The black circles highlight the derived velocity dispersion with  <45 cluster members.