Using OpenFOAM and the 6-DOF library for fluid-solid interaction in a Kaplan Turbine design

During the last evenings / nights, I prepared a new OpenFOAM case that uses the 6-DOF library to couple the flow and rigid body interaction. The geometry represents a Kaplan Turbine and was prepared in SalomeMeca. Furthermore, the surface triangulation was done within the CAD toolbox while the mesh module was used. The explicit surface triangulation lead to a good handling within the OpenFOAM inhouse mesher snappyHexMesh and a regionSTL was build with a simple python script. However, after extracting the feature edges with OpenFOAM, the analyze showed that the feature edge mesh has to be advanced and modified. Here the software package Blender came into handy. After a high pre-process level was done, the first meshing result was awesome as always. The main problem of the meshing procedure is the correct snapping of the arbitrary mesh interfaces that are going to be investigated the next days with several different tricks and ways.

The latest updates can be checked out on my twitter account: https://twitter.com/HolzmannCFD

After everything will work, I will publish the tutorial like always on my website.