A Method for Adaptive Anisotropic Refinement and Coarsening of Prismatic Polyhedra
摘要
A method is proposed to enable the anisotropic refinement and coarsening of prismatic boundary-layer polyhedra within the context of unstructured polyhedral meshes for viscous flow simulations using computational fluid dynamics. The method is compatible with the Polyhedral Unstructured Mesh Adaptation (PUMA) algorithm for the isotropic refinement and subsequent coarsening of general polyhedral cells. This allows simulations to leverage the full flexibility of polyhedral meshes for adaptive mesh refinement, while retaining the benefits of an improved accuracy-to-computational cost ratio.