“…This phenomenology has been demonstrated and discussed in many experimental works, 2,20 as well as numerical studies [21][22][23][24][25][26][27][28] and theoretical analyses. 17,[29][30][31] From a modelling standpoint, reproducing accurately pair relative velocity and dispersion statistics is crucial to predict the effect of particle clustering on turbulent collisions and sedimentation. 17 In a series of recent papers, 32,33 Bec and co-workers characterized the relative dispersion of heavy point particles in homogeneous isotropic turbulence, focusing specifically on the scaling of particle velocity distribution at changing the degree of inertia in the different dispersive regimes (dissipative, inertial, and diffusive).…”