All-hexahedral mesh generation via inside-out advancing front based on harmonic fields

作者：Li, Mengfei; Tong, Ruofeng^*

来源：Visual Computer, 2012, 28(6-8): 839-847.

DOI：10.1007/s00371-012-0707-y

• Hexahedral mesh
• Harmonic field
• Advancing front

The generation of hexahedral meshes is an open problem that has undergone significant research. This paper deals with a novel inside-out advancing front method to generate unstructured all-hexahedral meshes for given volumes. Two orthogonal harmonic fields, principal and radial harmonic fields, are generated to guide the inside-out advancing front process based on a few user interactions. Starting from an initial hexahedral mesh inside the given volume, we advance the boundary quadrilateral mesh along the streamlines of radial field and construct layers of hexahedral elements. To ensure high quality and uniform size of the hexahedral mesh, quadrilateral elements are decomposed in such a way that no non-hexahedral element is produced. For complex volume with branch structures, we segment the complex volume into simple sub-volumes that are suitable for our method. Experimental results show that our method generates high quality all-hexahedral meshes for the given volumes.

• 出版日期2012-6
• 单位浙江大学