4 papers
Advanced numerical methods in astrophysical fluid dynamics
A. Hujeirat, B. W. Keil, F. Heitsch
Computational gas dynamics has become a prominent research field both in astrophysics and cosmology. In the first part of this review we intend to briefly describe several of the n…
Compressed low Mach number flows in astrophysics: a nonlinear Newtonian numerical solver
A. Hujeirat, F. -K. Thielemann, J. Dusek +1
Internal flows inside gravitationally stable astrophysical objects, such as the Sun, stars and compact stars are compressed and extremely subsonic. Such low Mach number flows are u…
A method for relaxing the CFL-condition in time explicit schemes
A. Hujeirat
A method for relaxing the CFL-condition, which limits the time step size in explicit methods in computational fluid dynamics, is presented. The method is based on re-formulating ex…
Jet-formation in accreting black hole systems and in GRB
A. Hujeirat
Most powerful jets are observed to emanate from accreting black hole systems. Recent quasi-stationary radiative MHD calculations reveal that jet-launching start in the innermost re…