Generation of unstructured tetrahedral meshes for flow past flight vehicles based on open packages
Michael K. Ermakov, Arina Kryuchkova · Physical-Chemical Kinetics in Gas Dynamics · 2020
The open packages Gmsh and Salome are used for automatic generation of unstructured tetrahedral meshes in aircraft flow problems.These packages allow you to quickly and efficiently build spatial grids for geometric models defined in the OpenCascade geometric core or in STEP format.It provides mechanisms for thickening the grid, adapting the grid to the solution, generating the grid in interactive mode, command-line mode, and using the program library.In this paper, the possibilities of grid generation algorithms in terms of speed and quality of the resulting grid are investigated.Examples of creating a geometric model and generating a grid are given, as well as examples of calculations on the resulting grids.