Spheral

Spheral++ provides a steerable parallel environment for performing coupled hydrodynamical & gravitational numerical simulations. Hydrodynamics and gravity are modelled using particle based methods (SPH and N-Body).

Useful Spheral features:

• Total energy conserving compatible hydro mode.

• ASPH (Adaptive Smoothed Particle Hydrodynamics) algorithm.

• CRKSPH (Conservative Reproducing Kernel Hydrodyamics) is also available.

• Oct-tree based N-Body gravity.

• Fluid and solid material modeling.

• Damage and fracture modeling in solids.

• Scriptable user interface in python.

• Extensible by user in python, including the ability to write new physics packages in python.

Build Guides:

• Building Spheral
• Building Spheral on LC Systems
• Appendix

User Guide:

• Spheral Users Guide
  • The first thing to know: Spheral is a Python Module
  • What are these meshfree modeling methods?
  • A tour of a Spheral script
    • Importing Python modules
    • Command line definitions (optional)
    • Creating output directories
    • Units and material properties
    • Interpolation kernel
    • NodeList construction
    • Generating and distributing our nodes across processors
    • Setting initial conditions (point properties)
    • Constructing the DataBase
    • Building the hydrodynamics package
    • Boundary conditions
    • The time integration choice
    • The Spheral controller
    • Advancing and analysing the problem

Developer Guide:

• Spheral Developer Guide
• Spheral Design Docs

References:

• References

Release and License:

Copyright (c) 2025, Lawrence Livermore National Security, LLC. Produced at the Lawrence Livermore National Laboratory Written by J. Michael Owen mikeowen@llnl.gov LLNL-CODE-561852 All rights reserved.

Please see full license