Hexahedral Mesh Untangling
Journal Article
·
· Engineering with Computers
OSTI ID:771515
We investigate a well-motivated mesh untangling objective function whose optimization automatically produces non-inverted elements when possible. Examples show the procedure is highly effective on simplicial meshes and on non-simplicial (e.g., hexahedral) meshes constructed via mapping or sweeping algorithms. The current whisker-weaving (WW) algorithm in CUBIT usually produces hexahedral meshes that are unsuitable for analyses due to inverted elements. The majority of these meshes cannot be untangled using the new objective function. The most likely source of the difficulty is poor mesh topology.
- Research Organization:
- Sandia National Lab. (SNL-NM), Albuquerque, NM (United States); Sandia National Lab. (SNL-CA), Livermore, CA (United States)
- Sponsoring Organization:
- US Department of Energy (US)
- DOE Contract Number:
- AC04-94AL85000
- OSTI ID:
- 771515
- Report Number(s):
- SAND2000-3117J; TRN: AH200118%%360
- Journal Information:
- Engineering with Computers, Other Information: Submitted to Engineering with Computers; PBD: 13 Dec 2000
- Country of Publication:
- United States
- Language:
- English
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