Comparison between DustPy and our model in a setup without dust diffusion and with different drift calibration factors f_drift. Solid lines show the results of our TriPoD calibration runs and dashed lines show the respective DustPy simulation, to which we calibrate our model. The upper row shows a timeseries of the dust column density evolution in three snapshots. In the lower row, we show the mass evolution and the errors with respect to the full coagulation model DustPy. For a factor of f_drift = 0.8, the mass evolution of the full coagulation model is well reproduced by our three-parameter model.