Adaptive smoothing techniques for 3-D unstructured meshes

Technical Report · Mon Apr 01 00:00:00 EST 1996

DOI:https://doi.org/10.2172/226042· OSTI ID:226042

Kuprat, A

To correctly capture the behavior of deforming material volumes in 3-D, the Los Alamos unstructured grid code X3D has access to a variety of moving mesh algorithms. The authors present two such algorithms which markedly differ in their computational complexity. The first algorithm, Moving finite Elements for Surfaces, has only 2-D computational complexity, in that they only solve for interface motions and obtain volume point motions through interpolation. The second algorithm, Minimum Error Gradient Adaption, has 3-D complexity, since the volume tetrahedral deformations must be computed. Naturally, the 3-D complexity algorithm can model realistically a larger class of physical problems than the lower complexity approach. They present examples in metallic grain growth and semiconductor process modeling.

• Research Organization: Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
• Sponsoring Organization: USDOE, Washington, DC (United States)
• DOE Contract Number: W-7405-ENG-36
• OSTI ID: 226042
• Report Number(s): LA-UR-96-1116; CONF-960489-4; ON: DE96009765; TRN: AHC29610%%84
• Resource Relation: Conference: 5. international conference on numerical grid generation in computational fluid dynamics and related fields, Starkville, MS (United States), 1-5 Apr 1996; Other Information: PBD: [1996]
• Country of Publication: United States
• Language: English

Related Subjects

99 MATHEMATICS
COMPUTERS
INFORMATION SCIENCE
MANAGEMENT
LAW
MISCELLANEOUS
36 MATERIALS SCIENCE
MESH GENERATION
ALGORITHMS
METALS
GRAIN GROWTH
SEMICONDUCTOR MATERIALS
FABRICATION
ATOM TRANSPORT
BORON
DIFFUSION
MATHEMATICAL MODELS
FINITE ELEMENT METHOD
THREE-DIMENSIONAL CALCULATIONS
USES
THEORETICAL DATA