GenASiS: General Astrophysical Simulation System. I. Refinable Mesh and Nonrelativistic Hydrodynamics

Abstract

GenASiS (General Astrophysical Simulation System) is a new code being developed initially and primarily, though by no means exclusively, for the simulation of core-collapse supernovae on the world's leading capability supercomputers. This paper---the first in a series---demonstrates a centrally refined coordinate patch suitable for gravitational collapse and documents methods for compressible nonrelativistic hydrodynamics. We benchmark the hydrodynamics capabilities of GenASiS against many standard test problems; the results illustrate the basic competence of our implementation, demonstrate the strengths and limitations of the HLLC relative to the HLL Riemann solver in a number of interesting cases, and provide preliminary indications of the code's ability to scale and to function with cell-by-cell fixed-mesh refinement.

Belated update to version accepted ApJS

References in corpus (10)

• Athena: A New Code for Astrophysical MHD
• ECHO: an Eulerian Conservative High Order scheme for general relativistic magnetohydrodynamics and magnetodynamics
• SASI Activity in Three-Dimensional Neutrino-Hydrodynamics Simulations of Supernova Cores
• Axisymmetric Ab Initio Core-Collapse Supernova Simulations of 12-25 M_sol Stars
• A Direct Multigrid Poisson Solver for Oct-Tree Adaptive Meshes
• Gravitational waves from 3D MHD core collapse simulations
• The Dependence of the Neutrino Mechanism of Core-Collapse Supernovae on the Equation of State
• Multimessengers from core-collapse supernovae: multidimensionality as a key to bridge theory and observation
• An axis-free overset grid in spherical polar coordinates for simulating 3D self-gravitating flows
• A Two-Dimensional MagnetoHydrodynamics Scheme for General Unstructured Grids

Cited by in corpus (8)

• Stochasticity and efficiency of simplified core-collapse supernova explosions
• A simple, entropy-based dissipation trigger for SPH
• Targeting GPUs with OpenMP Directives on Summit: A Simple and Effective Fortran Experience
• APSARA: A multi-dimensional unsplit fourth-order explicit Eulerian hydrodynamics code for arbitrary curvilinear grids
• thornado-hydro: a discontinuous Galerkin method for supernova hydrodynamics with nuclear equations of state
• GenASiS Basics: Object-oriented utilitarian functionality for large-scale physics simulations (Version 4)
• GenASiS Mathematics: Object-oriented manifolds, operations, and solvers for large-scale physics simulations
• GenASiS: General Astrophysical Simulation System. II. Self-gravitating Baryonic Matter