NumSim

A template for a flow solver for the Navier-Stokes equations with some nice features such as arbitrary geometries, heat transport and interaction with solids.

Installation & Prerequisites

You need

• gcc
• libvtk and
• cmake to compile and build this project succesfully. Execute sudo apt install gcc cmake inside the terminal to install the first two tools. For libvtk enter sudo apt install libvtk and press the "tab-key" for autocompletion proposals and choose the version you like.

Executing cd build && cmake .. & make -j && make install in the main project folder compiles the sources and copys the executable to the build directory. The first time the command above will fail, because there is no build directory. Simply enter mkdir build to create the directory.

Usage

• Run the programm: ./numsim ../ini/your_szenario.txt

Visualization

The results of the simulation (velocity u, velocity v, pressure p) will be saved for every timestep in the folder /out and can be visualized with paraview.

Documentation

Run doxygen ./docs/doxyfile in the project folder to create the html and latex documentation. You can access the main page of the html documentation by opening docs/html/index.html with a browser of your choice.

Fixes

If you installed libvtk manually and not with sudo apt-get install libvtk maybe you need to export the library path export LD_LIBRARY_PATH=/usr/local/lib:$LD_LIBRARY_PATH

Running the tests

cd build && cmake .. & make -j && ctest -r

Authors

• Author 1 - Initial work - kaiserls

• Author 2 - Initial work - ...

• Author 3 - Further work - ...