CASTRO: A New Compressible Astrophysical Solver. I. Hydrodynamics and Self-Gravity
A. S. Almgren, V. E. Beckner, J. B. Bell, M. S. Day, L. H. Howell, C., C. Joggerst, M. J. Lijewski, A. Nonaka, M. Singer, M. Zingale
TL;DR
CASTRO is a new astrophysical simulation code that solves compressible hydrodynamics with self-gravity, nuclear reactions, and radiation, utilizing adaptive mesh refinement for high-resolution modeling.
Contribution
It introduces a novel AMR approach with nested grids and simultaneous space-time refinement for astrophysical flow simulations.
Findings
Efficiently models complex astrophysical phenomena.
Integrates self-gravity and nuclear reactions in hydrodynamic simulations.
Provides a flexible framework for future radiation modeling.
Abstract
We present a new code, CASTRO, that solves the multicomponent compressible hydrodynamic equations for astrophysical flows including self-gravity, nuclear reactions and radiation. CASTRO uses an Eulerian grid and incorporates adaptive mesh refinement (AMR). Our approach to AMR uses a nested hierarchy of logically-rectangular grids with simultaneous refinement in both space and time. The radiation component of CASTRO will be described in detail in the next paper, Part II, of this series.
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