A template-based approach for parallel hexahedral two-refinement. (April 2017)

• Record Type: Journal Article
• Authors: Owen, Steven J.; Shih, Ryan M.; Ernst, Corey D.
• Is Part Of: Computer aided design. Volume 85(2017)
• Page Start: 34
• Page End: 52
• Publication Date: 2017-04
• Subjects: Hexahedron -- Mesh refinement -- 2-refinement -- Adaptivity -- Parallel; Computer-aided design -- Periodicals; Engineering design -- Data processing -- Periodicals; Computer graphics -- Periodicals; Conception technique -- Informatique -- Périodiques; Infographie -- Périodiques; Computer graphics; Engineering design -- Data processing; Periodicals; Electronic journals; 620.00420285
• DOI: 10.1016/j.cad.2016.09.005
• Languages: English
• ISSNs: 0010-4485

Abstract

Abstract: We provide a template-based approach for generating locally refined all-hex meshes. We focus specifically on refinement of initially structured grids utilizing a 2-refinement approach where uniformly refined hexes are subdivided into eight child elements. The refinement algorithm consists of identifying marked nodes that are used as the basis for a set of four simple refinement templates. The target application for 2-refinement is a parallel grid-based all-hex meshing tool for high performance computing in a distributed environment. The result is a parallel consistent locally refined mesh requiring minimal communication and where minimum mesh quality is greater than scaled Jacobian 0.3 prior to smoothing. Highlights: All-hex conformal refinement of Cartesian grids. New template-based two-refinement algorithm. Distributed parallel algorithms for high performance computing. Parallel consistent with minimum quality guarantee.