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We present the implementation of a dust growth and fragmentation module inthe public Smoothed Particle Hydrodynamics (SPH) code PHANTOM. This module ismade available for public use with this paper. The coagulation model considerslocally monodisperse dust size distributions around single values that arecarried by the SPH particles. Along with the presentation of the model,implementation and tests, we showcase growth and fragmentation in a few typicalcircumstellar disc simulations and revisit previous results. The module is alsointerfaced with the radiative transfer code MCFOST, which facilitates thecomparison between simulations and ALMA observations by generating syntheticmaps. Circumstellar disc simulations with growth and fragmentation reproducethe `self-induced dust trap' mechanism first proposed by Gonzalez et al., whichsupports its existence. Synthetic images of discs featuring this mechanismsuggest it would be detectable by ALMA as a bright axisymmetric ring at severaltens of au from the star. With this paper, our aim is to provide a public toolto be able to study and explore dust growth in a variety of applicationsrelated to planet formation.

Dust growth, fragmentation and self-induced dust traps in PHANTOM