"Multi-Dimensional Gas+Dust Modeling of Protoplanetary Disks and Supply for Planet Formation"

Abstract:

Observations of protoplanetary disks (PPDs) and direct imaging of giant planets with spectra are providing increasingly strong constraints on the dust and gas properties in PPDs during planet formation. Meanwhile, large-scale numerical modeling of the joint dynamics of gas and dust in such disks has shown great progress over the past decade. In this talk, we will describe the new challenges emerging from observations and present the recent numerical studies in 3D global gas+dust two-fluid PPD simulations. We will use several examples to show how the interplay between disk global+local instabilities and the dust size evolution can impact the dust properties and distribution, both for interpreting observations, and ultimately, for understanding the planet formation.