LGCA

LGCA is an efficient C++ implementation of a Lattice Gas Cellular Automaton (LGCA) for 2D fluid dynamics simulations. Features comprise

• HPP, FHP-I, FHP-II, and FHP-III lattice gas models
• Several configurable applications (including Kármán vortex street, pipe flow, and molecular diffusion)
• Shared memory parallelization
• Easy-to-use graphical user interface
• On-line data visualization
• File I/O using vtkImageData (.vti) (supported by ParaView) as well as PNG images

Build from Source

Please make sure you have installed CMake version 3.8 or higher on your local machine. You will also need Git and some basic development tools (gcc, g++, make...).

Switch to the directory where you would like to install the code. Clone the Git repository of the project:

git clone https://github.com/keva92/lgca.git

Create a build directory and configure the build process:

cd lgca/
mkdir build
cd build/
ccmake ..

Build the project and run one of the apps:

make
cd ../bin/
./lgca-pipe

Deploy using Docker

A Docker image will shortly be available.

Theory

Hopefully, some basic theory on lattice gas cellular automatons will follow soon. Until then, feel free to have a look at Dieter Wolf-Gladrow's profound introduction to Lattice-Gas Cellular Automata and Lattice Boltzmann Models.

Background

The initial code has been developed at Hamburg University of Technology (TUHH) in 2015 in the framework of the postgrad course "Application of Innovative CFD Methods in Research and Development" by the then students Niklas Kühl and Kerstin Vater. The project has been initiated and supervised by Christian F. Janßen, postdoc at the Institute of Fluid Dynamics and Ship Theory at that time.