Monday, February 25, 200810:00 AM - 11:00 AMCNLS Conference Room (TA-3, Bldg 1690)|
BETHE, an ALE Code for Astrophysical Simulations
Jeremiah MurphySteward Observatory, The University of Arizona
BETHE is a new code to solve self-gravitating radiation-hydrodynamics for 1D and 2D
astrophysical simulations. Its hydrodynamic core is an Arbitrary Lagrangian-Eulerian (ALE) approach that uses time-dependent, arbitrary, unstructured grids. While our initial motivation in
developing BETHE was for simulations of core-collapse supernovae (explosions of massive stars), I suggest that the arbitrary nature of
the grid enables novel simulations, addressing many outstanding astrophysical problems, including winds from hot stars and giant eruptions of luminous blue variables. With an eye toward
astrophysical simulations, I'll describe idiosyncrasies of ALE simulations, document our progress in solving some of them, and list remaining problems to be resolved.