Singular mesh generation from multiple overset meshes: A tool for industrial applications

In this work we present a strategy for single mesh generation from multiple overset grids for an unstructured finite volume vertex-centered Navier-Stokes equations solver. The final aim is to slim down the mesh generation process for complex industrial cases, especially in case of mesh displacement, and boundary layer overlapping where Chimera interpolation schemes are often applied. At the same time the tool developed has to take place in between of the mesh generation and solver, in such a way that it is possible to work on the final mesh with no modification of the grid generator code. The validity of the approach will be verified on the basis of the results obtained by running DLR-TAU solver, directly comparing them with the outcome of Chimera interpolation routines.