有限元网格全自动自适应生成新方法

A New Method of Fully Automatic and Adaptive Mesh Generation for Computation with FEM

详细论述了基于推进波前技术提出的全自动自适应网格生成方法．对推进波前法中的基边选择和单元生成等技术关键作了深入的分析，并给出了合理的处理方案，同时也提出了一种快速可靠的单元搜索方法．通过使用当前网格上的计算结果提供的信息，网格被自适应地重新生成．给出的一些实例说明了所提出的自适应网格生成方法的性能．

A fully automatic and adaptive mesh generating algorithm based on the advance wave front technique is presented. Some key techniques concerning the selection of base side and generation of element are discussed. Several useful schemes are given. A fast and effective element search method is proposed. Adaptive regeneration of the mesh is accomplished using the information provided by the computation results on the current mesh. Several graphic examples are given to show the performance of the algorithm. As an important part of a geometry-based, fast, effective, automatic and adaptive mesh generating scheme proposed by the authors, the adaptive algorithm is very simple and easy to operate with a finite element analysis and the mesh generated is of high quality and with element analysis and the mesh generated is of high quality and with elements of uniformly varied densities.