Research
- 3D global non-ideal MHD simulations
- FLD Radiative Transfer With the recently developed radiative transfer module by Rolf Kuiper we are able to set up a realistic temperature profile in the disk which is calculated with frequency depended irradiation as well as a proper dust opacitie table.
- Godunov MHD methods We study and test the different MHD methods for Godunov schemes in global simulations and compare on numerical diffusion, especially constrained transport methods. In recent work we develop a conservative numerical scheme which is based on pure cell center variables (5th order GLM method).
We study 3D global stratified MHD simulations of proto-planetary disks in a spherical coordinate system. Studys are done with net or zero-net initial azimuthal or vertical magnetic fields. We investigate turbulent properties and motion of the gas and micro-sized dust. In recent work we include also a proper resistivity profile in our simulation which is calculated dynamically using X-ray and Cosmic ray ionization as well as a reduced chemical network.