Radiation-hydrodynamics with MPI-AMRVAC

Radiation controls the dynamics and energetics of many astrophysical environments. To capture coupling between radiation matter, however, is often a physically complex computationally expensive endeavour. We develop numerical tool to perform radiation-hydrodynamics simulations in various configurations at an affordable cost. build upon finite volume code MPI-AMRVAC solve equations hydrodynamics on multi-dimensional adaptive meshes introduce new module handle with radiation. A non-equilibrium, flux-limiting diffusion approximation used close momentum energy equations. The time-dependent equation then solved within flexible framework, accounting fully for forces work terms further allowing user adopt variety descriptions radiation-matter interaction (the 'opacities'). validate set standard testcases which different radiative predominate. As preliminary application scientific case, we calculate spherically symmetric models radiation-driven optically thick supersonic outflows from massive Wolf-Rayet stars. This also demonstrates our code's flexibility, as illustrated simulation combines opacities typically static stellar structure parametrised form enhanced line-opacity expected flows. provides convenient versatile high resolution radiative-hydrodynamics environments code. ready be applications, where first target us will