No Cover Image

Journal article 1277 views 408 downloads

Automatic sizing functions for unstructured surface mesh generation

Jianjun Chen, Zhoufang Xiao, Yao Zheng, Jianjing Zheng, Chenfeng Li Orcid Logo, Kewei Liang

International Journal for Numerical Methods in Engineering, Volume: 109, Issue: 4, Pages: 577 - 608

Swansea University Author: Chenfeng Li Orcid Logo

Check full text

DOI (Published version): 10.1002/nme.5298

Abstract

Accurate sizing functions are crucial for efficient generation of high-quality meshes, but to define the sizing function is often the bottleneck in complicated mesh generation tasks because of the tedious user interaction involved. We present a novel algorithm to automatically create high-quality si...

Full description

Published in: International Journal for Numerical Methods in Engineering
ISSN: 0029-5981
Published: 2017
Online Access: Check full text

URI: https://cronfa.swan.ac.uk/Record/cronfa28878
Tags: Add Tag
No Tags, Be the first to tag this record!
Abstract: Accurate sizing functions are crucial for efficient generation of high-quality meshes, but to define the sizing function is often the bottleneck in complicated mesh generation tasks because of the tedious user interaction involved. We present a novel algorithm to automatically create high-quality sizing functions for surface mesh generation. First, the tessellation of a Computer Aided Design (CAD) model is taken as the background mesh, in which an initial sizing function is defined by considering geometrical factors and user-specified parameters. Then, a convex nonlinear programming problem is formulated and solved efficiently to obtain a smoothed sizing function that corresponds to a mesh satisfying necessary gradient constraint conditions and containing a significantly reduced element number. Finally, this sizing function is applied in an advancing front mesher. With the aid of a walk-through algorithm, an efficient sizing-value query scheme is developed. Meshing experiments of some very complicated geometry models are presented to demonstrate that the proposed sizing-function approach enables accurate and fully automatic surface mesh generation.
College: Faculty of Science and Engineering
Issue: 4
Start Page: 577
End Page: 608

Similar Items