Drift velocity of the dust particles depending on the radius of the particles. This is compared to expected transport for pressure supported discs. Results are shown for the radiative simulation with irradiation, resolution 1024 × 256 × 64 and viscosity ν = 5 × 10^-7 at r = 20au. Different colours are used for inward and outward drift. We estimate the error from the radial diffusion coefficient.