A Neural Network Subgrid Model of the Early Stages of Planet Formation. (arXiv:2211.04160v1 [astro-ph.EP])

Planet formation is a multi-scale process in which the coagulation of
$\mathrm{\mu m}$-sized dust grains in protoplanetary disks is strongly
influenced by the hydrodynamic processes on scales of astronomical units
($\approx 1.5\times 10^8 \,\mathrm{km}$). Studies are therefore dependent on
subgrid models to emulate the micro physics of dust coagulation on top of a
large scale hydrodynamic simulation. Numerical simulations which include the
relevant physical effects are complex and computationally expensive. Here, we
present a fast and accurate learned effective model …

arxiv astro network neural network planet