@article{5931, author = {R. Keppens and J. P. Goedbloed}, title = {Numerical simulations of stellar winds}, abstract = {We discuss steady-state transonic outflows obtained by direct numerical solution of the hydrodynamic and magnetohydrodynamic equations. We make use of the Versatile Advection Code, a software package for solving systems of (hyperbolic) partial differential equations. We model thermally and magneto-centrifugally driven stellar outflows as generalizations of the well-known Parker and Weber-Davis wind solutions. To obtain steady-state solutions efficiently, we exploit fully implicit time stepping. Wind solutions containing both a 'wind' and a 'dead' zone are presented. We emphasize the boundary conditions imposed at the stellar surface. For axisymmetric wind solutions, we use the knowledge of the flux functions to verify the numerical solutions.}, year = {1999}, journal = {Space Science Reviews}, volume = {87}, number = {1-2}, pages = {223-226}, month = {1999}, isbn = {0038-6308}, doi = {10.1023/a:1005152602359}, language = {eng}, }