Ensuring a smooth transition from semi-structured surface boundary layer mesh to fully unstructured anisotropic surface mesh
Romain Aubry · 53rd AIAA Aerospace Sciences Meeting · 2015
Anisotropic surface mesh is considered in this work. First, a semi-structured boundary layer surface mesh is generated to maintain strong normality in the mesh. Then a fully unstructured anisotropic mesh completes the final mesh. In order to get a smooth and coherent anisotropic size distribution, anisotropic sources are used. Boundary layer parameters are therefore perceived from the mesher through this global anisotropic sizing field. Some anisotropic sources are presented, as well as the algorithm to generate a meaningful anisotropic sizing field corresponding to a distance based sizing field. Some numerical examples illustrate the method.