Open-Source Software
The CHAOS Laboratory develops and contributes to high-performance open-source scientific software.
Lethe 
Lethe is an open-source finite-element framework for multiphysics and multiphase flow simulations.
It is designed for high-performance computing and includes advances features such as mesh adaptation and dynamic load balancing.
Lethe provides:
- Matrix-free stabilized solvers for incompressible Navier–Stokes equations
- Multiphase capabilities (VOF)
- Discrete Element Method (DEM) solvers for granular and particulate flows
- Coupled CFD-DEM and conjugate heat transfer capabilities
- Advanced features for additive manufacturing, process intensification, and particle transport
Lethe is developed in C++ and built upon the deal.II finite-element library.
All code is released under a dual Apache-2.0 WITH LLVM-exception or LGPL-2.1-or-later license.
deal.II
deal.II is a C++ program library targeted at the computational solution of partial differential equations using adaptive finite elements. It uses state-of-the-art programming techniques to offer you a modern interface to the complex data structures and algorithms required.
Key characteristics:
- Object-oriented, extensible architecture
- Interfaces to major solver packages such as Trilinos, PETSc, and p4est
deal.II serves as the foundation for Lethe’s core numerical infrastructure.
The CHAOS Laboratory contributes actively to its ongoing development.
🔗 deal.II official website
📦 GitHub repository
📚 Tutorials and documentation
🌍 Open-Science Philosophy
At CHAOS Lab, we believe that reproducibility and transparency are cornerstones of scientific progress.
All our numerical methods, benchmarks, and simulation tools are released under open licenses and developed in public repositories.
This page is currently being updated. Please check back soon for more information about our software projects.