Agglomeration Multigrid for an Unstructured-Grid Flow Solver

摘要

Unstructured-grid (USG) methodology has emerged as a mature computational fluid dynamics (CFD) tool for rapid aerodynamics analysis and design of complex configurations. It offers a substantially reduced turnaround time for CFD solutions due primarily to the ease and speed at which unstructured grids can be generated. Key components of the USG methodology have been consolidated into a flow analysis tool called the NASA Tetrahedral Unstructured Software System (TetrUSS). The TetrUSS system is a loosely integrated, user-friendly software that comprises of a geometry setup tool GridTool, a tetrahedral grid generator VGRIDns, and a flow solver USM3Dns.