Left column: radial distribution of the maximum radius of grown dust for all azimuthal grid points in model L2. Color of dots shows the value of Stokes number for each azimuthal grid point. Solid black line shows the dust fragmentation size a_frag. Middle column: azimuthally averaged dust-to-gas mass ratio (black), surface density of gas (blue curve), grown dust (red curve),and pebbles (green curve) vs. radial distance from the star. The dashed line shows the power-law slope ∝ r^−1.5. Right column: azimuthally averaged absolute values of gas (blue curve), grown dust (red curve), and pebble (green curve) accretion (transport) rates vs. radial distance from the star. Dashed part of the curve shows the outward migration, solid part – the inward migration.