The main goal of this project is to develop a parallel tetrahedral mesh generator based on existing sequential mesh generation software. As sequential mesh generation software, the Netgen mesh generator was used due to its availability as LGPL open source software and its wide user base. Parallel mesh generation routines were developed using the MPI libraries and the C++ language. The parallel ...

Mesh generation is a key step in graphics rendering and in using the finite-element method to solve partial differential equations. The goal of mesh generation is to discretize the domain of interest using polygonal elements such as triangles (in 2-D) or tetrahedra (in 3-D). One popular mesh generation algorithm is Delaunay mesh generation, which produces meshes with certain quality guarantees ...

A brief survey of some of the fundamental algorithms in unstructured mesh generation is presented. Included is a discussion and categorization of triangle, tetrahedral, quadrilateral and hexahedral mesh generation methods currently in use in academia and industry. Also included is a brief discussion of smoothing, cleanup and refinement algorithms. An informal survey of currently available mesh ...

In this paper, we build on the mesh improvement methods intended for parallel execution with the paving method [1] and introduce topological changes in an existing quadrilateral-only mesh to improve element shape and nodal valence. This discussion is intended to demonstrate the effectiveness of utilizing mesh cleanup operations as a post-processing step to other mesh generation algorithms. The ...

A principle in surface sampling and mesh generation is that highly curved area should be sampled densely and vice versa. This paper presents an approach for automated surface sampling and adaptive mesh generation in accordance with the principle. The approach is self-organizing, forming topology-preserving mesh from random initialization. Mesh spacing versus surface curvedness can be easily con...

PARALLEL TWO-DIMENSIONAL UNSTRUCTURED ANISOTROPIC DELAUNAY MESH GENERATION FOR AEROSPACE APPLICATIONS Juliette Kelly Pardue Old Dominion University, 2015 Director: Dr. Andrey Chernikov A bottom-up approach to parallel anisotropic mesh generation is presented by building a mesh generator from the principles of point-insertion, triangulation, and Delaunay refinement. Applications focusing on high...

Modeling, generation, and adaptation of unstructured meshes based on e.g. simplicies is of utmost importance for scientific computing, especially in the area of Technology Computer Aided Design (TCAD). Not only does the quality of the results depend on the quality of the mesh, a solution is even impossible, if a mesh cannot be successfully generated. The simulation of microelectronic devices su...

Nowadays, with the advances of Finite Element Analysis (FEA) packages, some of the engineering and design problems such as stress or thermal deformation can be successfully solved. These are convenient for better incorporating the design constraints of various tasks such as injection molded parts, or rapid prototyping and tooling. Mesh generation is the major step of finite element method for n...

Mesh generation for process simulation is a difficult task, complicated by both the moving boundaries and the time dependence of the solutions. For both computational and ease of use reasons, automatic mesh generation and discretization error control is desirable. This paper describes an approach based on local error estimates to refine the mesh. This paper extends our previous work to two-dime...