Motivated by recent theoretical work on tidal disruption events and other peculiar transients, we present moving-mesh radiation-hydrodynamic simulations of radiative luminosity emitted a central source being reprocessed wind-like outflow. We couple the hydrodynamic code JET with our newly-developed radiation module based mixed-frame grey flux-limited diffusion implicit timestep update. This all...

ABSTRACT We present a model for the interaction between dust and radiation fields in hydrodynamic code arepo-rt, which solves moment-based radiative transfer equations on an unstructured moving mesh. Dust is directly treated using live simulation particles, each of represent population grains that are coupled to motion through drag force. introduce methods calculate pressure photon absorption b...

Mesh generation for process simulation is a difficult task, complicated by both the moving boundaries and the time dependence of the solutions. For both computational and ease of use reasons, automatic mesh generation and discretization error control is desirable. This paper describes an approach based on local error estimates to refine the mesh. This paper extends our previous work to two-dime...