Advanced Graphics-Interactive System for a Multi-Block Structured Grid Generationwithin an Industrial Environment

摘要

A grid generation procedure embedded in a flow simulation system suitable for theanalysis of a complex aerodynamic shape like an aircraft is described. The procedure is based on a multiblock approach and incorporates new technical concepts like discontinuous grid lines across block boundaries, local grid refinement, unstructured blocks packing, hyperblocks, zonal flow models. These improvements are aimed at increasing the system flexibility and easing the manipulation of complicated configurations while at the same time enhancing flow simulation accuracy. The complexity of the system is very high, but the required user effort is made realistic by the extensive applications of graphic interactive tools. It is pointed out that preliminary tasks like geometry modeling and domain decomposition are the actual critical items within the overall grid generation process.