The mathematical part covers the implementation and
comparison of different numerical schemes to solve
the equations of radiation hydrodynamics. One and the
same two-dimensional model of solar granulation is
simulated with different high resolution numerical
methods (essentially non-oscillatory and convex
non-oscillatory) and non-grey short characteristic
radiative transfer. Furthermore the influence of
artificial diffusivities is studied. The second part
covers two astrophysical applications. A
two-dimensional non-grey high resolution simulation
of a downflowing plume in the sun and a grey
three-dimensional simulation of the quiet sun are
presented.
comparison of different numerical schemes to solve
the equations of radiation hydrodynamics. One and the
same two-dimensional model of solar granulation is
simulated with different high resolution numerical
methods (essentially non-oscillatory and convex
non-oscillatory) and non-grey short characteristic
radiative transfer. Furthermore the influence of
artificial diffusivities is studied. The second part
covers two astrophysical applications. A
two-dimensional non-grey high resolution simulation
of a downflowing plume in the sun and a grey
three-dimensional simulation of the quiet sun are
presented.