History & Contributions

Contributions

Version history

Version 0.3.3 (released X/X/2025)

• Removed global index variables in favor of adaptable indexing.

• Improved setting of simulation parameters.

• Added isothermal equation of state.

• Added atmosphere setup.

• Implemented proper 1D simulations.

Version 0.3.0 (released 1/7/2025)

This is a major new release. The most important changes are:

• Added gravity (fixed acceleration and fixed, user-defined potential).

• Added wall (reflective) boundary conditions.

• Added code units and plotting in arbitrary unit systems.

• Added correct treatment of CFL violations.

• Added automatic checks on conservation of mass, energy, and momentum (if applicable).

• Added cloud crushing, free-fall, Rayleigh-Taylor, and tidal disruption setups.

Version 0.2.2 (released 05/20/2021)

Minor changes:

• Added a check that the final time must be larger when restarting

• Added to documentation

Version 0.2.1 (released 05/19/2021)

The main runtime interface (see Running Ulula) was reworked significantly:

• it now accommodates saving and plotting at evenly spaced times rather than snapshots

• saving, plotting, and movie making can be switched on at the same time

• the output and plotting times do not interfere with the physical simulation

Version 0.2.0 (released 05/17/2021)

The main features added in this version relate to input/output of files:

• Added file saving into hdf5 snapshot files

• Added restarting capability (either manual or in runtime function)

• Added dictionaries of primitive and conserved fluid quantities for more transparency in the plotting and saving routines

• Added to documentation

Version 0.1.1 (released 04/02/2021)

This version is mostly a refactoring of the initial checkin, and also contains:

• Added Sedov-Taylor test case (blastwave explosion)

• Added radially averaged 1D plots of fluid quantities

Version 0.1.0 (released 03/24/2021)

Initial version. Contains the main hydro solver and examples.