KRATOS Multiphysics ("Kratos") is a framework for building parallel, multi-disciplinary simulation software, aiming at modularity, extensibility, and high performance. Kratos is written in C++, and counts with an extensive Python interface. More in Overview

Kratos is free under BSD-4 license and can be used even in commercial software as it is. Many of its main applications are also free and BSD-4 licensed but each derived application can have its own proprietary license.

Main Features

Kratos is multiplatform and available for Windows, Linux (several distros) and macOS.

Kratos is OpenMP and MPI parallel and scalable up to thousands of cores.

Kratos provides a core which defines the common framework and several application which work like plug-ins that can be extended in diverse fields.

Its main applications are:

DEM for cohesive and non cohesive spheric and non spheric particles simulation
Fluid Dynamics Provides 2D and 3D incompressible fluids formulation
Fluid Structure Interaction for solution of different FSI problems
Structural Mechanics Providing solution for solid, shell and beam structures with linear and nonlinear, static and dynamic behavior
Contact Structural Mechanics For contact problems used along the Structural Mechanics application

Some main modules are:

Documentation

Here you can find the basic documentation of the project:

Getting Started

Getting Kratos (Last compiled Release)
- Kratos from pip: Just simply type on terminal pip install KratosMultiphysics-all
- Kratos for GiD

Compiling Kratos
- See INSTALL.md

Tutorials

Examples of use

Kratos has been used for simulation of many different problems in a wide variety of disciplines ranging from wind over singular building to granular domain dynamics. Some examples and validation benchmarks simulated by Kratos can be found here

<img align="center" src="https://github.com/KratosMultiphysics/Examples/raw/master/fluid_dynamics/use_cases/barcelona_wind/resources/BarcelonaVelocityVector.png" width="288"> Barcelona Wind Simulation

Contributors

Organizations contributing to Kratos:

<img align="left" src="https://github.com/KratosMultiphysics/Documentation/raw/master/Wiki_files/Logos/CIMNE_logo.png" width="128"> International Center for Numerical Methods in Engineering

<img align="left" src="https://github.com/KratosMultiphysics/Documentation/raw/master/Wiki_files/Logos/TUM_Logo.png" width="128"> Chair of Structural Analysis Technical University of Munich

<img align="left" src="https://github.com/KratosMultiphysics/Documentation/raw/master/Wiki_files/Logos/siemens_logo.png" width="128"> Siemens Industry Software Inc <img align="left" src="https://github.com/KratosMultiphysics/Documentation/raw/master/Wiki_files/Logos/Deltares_logo.png" width="128"> Deltares

<img align="left" src="https://github.com/KratosMultiphysics/Documentation/raw/master/Wiki_files/Logos/TUBraunschweig_logo.svg" width="128"> Institute of Structural Analysis Technische Universität Braunschweig

<img align="left" src="https://github.com/KratosMultiphysics/Documentation/raw/master/Wiki_files/Logos/logo_UNIPD.svg" width="128"> University of Padova, Italy

Our Users

Some users of the technologies developed in Kratos are:

<img align="left" src="https://github.com/KratosMultiphysics/Documentation/raw/master/Wiki_files/Logos/AIRBUS_logo.png" width="128"> Airbus Defence and Space Stress Methods & Optimisation Department <img align="left" src="https://github.com/KratosMultiphysics/Documentation/raw/master/Wiki_files/Logos/siemens_logo.png" width="128"> Siemens AG Corporate Technology <img align="left" src="https://github.com/KratosMultiphysics/Documentation/raw/master/Wiki_files/Logos/onera_logo.png" width="128"> ONERA, The French Aerospace Lab Applied Aerodynamics Department

🤗 Looking forward to seeing your logo here!

Special Thanks To

In Kratos Core:

Boost for uBLAS
pybind11 for exposing C++ to python
GidPost providing output to GiD
AMGCL for its highly scalable multigrid solver
JSON JSON for Modern C++
ZLib The compression library
Google Test for unit testing C++ code
Google Benchmark for microbenchmarking and performance testing

In applications:

Eigen For linear solvers used in the LinearSolversApplication
Trilinos for MPI linear algebra and solvers used in TrilinosApplication
METIS for partitioning in MetisApplication
CoSimIO for performing coupled simulations with external solvers within the CoSimulationApplication. The CoSimIO in Kratos uses the following libraries:
- Boost for the intrusive_ptr
- filesystem Header-only single-file std::filesystem compatible helper library, based on the C++17 specs
- asio for socket based interprocess communication