Conforming Restricted Delaunay Mesh Generation for Piecewise Smooth Complexes. (2016)

• Record Type: Journal Article
• Authors: Engwirda, Darren
• Is Part Of: Procedia engineering. Volume 163(2016)
• Page Start: 84
• Page End: 96
• Publication Date: 2016
• Subjects: Mesh Generation -- Restricted Delaunay-refinement -- Advancing-front -- Frontal-Delaunay -- Off-centres -- Sharp-features; Engineering -- Congresses; Engineering -- Periodicals; Engineering; Conference proceedings; Periodicals; 620.005
• DOI: 10.1016/j.proeng.2016.11.024
• Languages: English
• ISSNs: 1877-7058

Abstract

Abstract: A Frontal-Delaunay refinement algorithm for mesh generation in piecewise smooth domains is described. Built using a restricted Delaunay framework, this new algorithm combines a number of novel features, including: (i) an unweighted, conforming restricted Delaunay representation for domains specified as a (non-manifold) collection of piecewise smooth surface patches and curve segments, (ii) a protection strategy for domains containing curve segments that subtend sharply acute angles, and (iii) a new class of off-centre refinement rules designed to achieve high-quality point-placement along embedded curve features. Experimental comparisons show that the new Frontal-Delaunay algorithm outperforms a classical (statically weighted) restricted Delaunay- refinement technique for a number of three-dimensional benchmark problems.