M. Zingale et al. 2002 ApJS 143 539 doi:10.1086/342754
M. Zingale1, L. J. Dursi2,3, J. ZuHone4, A. C. Calder2,3, B. Fryxell2,3, T. Plewa2,3,5, J. W. Truran2,3, A. Caceres2,3, K. Olson2,3,6, P. M. Ricker2,3, K. Riley2,3, R. Rosner2,3, A. Siegel2,3, F. X. Timmes2,3 and N. Vladimirova2,3
Show affiliationsWe look in detail at the process of mapping an astrophysical initial model from a stellar evolution code onto the computational grid of an explicit, Godunov-type code while maintaining hydrostatic equilibrium. This mapping process is common in astrophysical simulations, when it is necessary to follow short-timescale dynamics after a period of long-timescale buildup. We look at the effects of spatial resolution, boundary conditions, the treatment of the gravitational source terms in the hydrodynamics solver, and the initialization process itself. We conclude with a summary detailing the mapping process that yields the lowest ambient velocities in the mapped model.
Issue 2 (2002 December)
Received 2002 April 23, accepted for publication 2002 July 10
M. Zingale et al. 2002 ApJS 143 539
B. Fryxell et al. 2000 ApJS 131 273
J. B. Bell et al. 2004 ApJ 608 883
A. C. Calder et al. 2002 ApJS 143 201
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