Adaptive Hybrid Grids for Diverse Industrial Applications

An adaptive hybrid prismatic/tetrahedral grid generation method is described and applied to complex geometries for diverse industrial applications. The method consists of using a surface mesh generator to triangulate the geometry to be modeled. The volume mesh is then created using prismatic and tetrahedral elements. The prisms cover the region close to each body's surface for better resolution of viscous gradients, while tetrahedra are created in the remainder of the domain. An adaptive redistribution scheme is used to better resolve boundary layers. The grid generator is tested with various complex geometries and the resulting hybrid meshes are presented. The applicability of the adaptive hybrid grid generator over a wide range of geome-tries with minimal user interaction demonstrates the robustness and universality of the method.