Proceedings of the 18th International Meshing Roundtable

ISBN-13: 9783642043185 / Angielski / Twarda / 2009 / 672 str.

Brett W. Clark

Opis

The papers in this volume were selected for presentation at the 18th International Meshing Roundtable (IMR), held October 25-28, 2009 in Salt Lake City, UT, USA. The conference was started by Sandia National Laboratories in 1992 as a small meeting of organizations striving to establish a common focus for research and development in the field of mesh generation. Now after 18 consecutive years, the International Meshing Roundtable has become recognized as an international focal point annually attended by researchers and developers from dozens of co- tries around the world. The 18th International Meshing Roundtable consists of technical presentations from contributed papers, research notes, keynote and invited talks, short course presentations, and a poster session and competition. The Program Committee would like to express its appreciation to all who participate to make the IMR a successful and enriching experience. The papers in these proceedings were selected from more than 40 paper subm- sions. Based on input from peer reviews, the committee selected these papers for their perceived quality, originality, and appropriateness to the theme of the Inter- tional Meshing Roundtable. We would like to thank all who submitted papers. We would also like to thank the colleagues who provided reviews of the submitted - pers. The names of the reviewers are acknowledged in the following pages. We extend special thanks to Jacqueline Hunter for her time and effort to make the 18th IMR another outstanding conference.

Spis treści

Session 1A: Surface Meshing.- Size Function Smoothing Using an Element Area Gradient.- Removing Self Intersections of a Triangular Mesh by Edge Swapping, Edge Hammering, and Face Lifting.- Conformal Refinement of Unstructured Quadrilateral Meshes.- Guaranteed-Quality All-Quadrilateral Mesh Generation with Feature Preservation.- Session 1B: Hexahedral Meshing.- Advances in Octree-Based All-Hexahedral Mesh Generation: Handling Sharp Features.- Conforming Hexahedral Mesh Generation via Geometric Capture Methods.- Efficient Hexahedral Mesh Generation for Complex Geometries Using an Improved Set of Refinement Templates.- Embedding Features in a Cartesian Grid.- Session 2A: Optimization.- Label-Invariant Mesh Quality Metrics.- Perturbing Slivers in 3D Delaunay Meshes.- Mesh Smoothing Algorithms for Complex Geometric Domains.- A Novel Method for Surface Mesh Smoothing: Applications in Biomedical Modeling.- Quality Improvement of Non-manifold Hexahedral Meshes for Critical Feature Determination of Microstructure Materials.- Session 2B: Geometry.- Automatic CAD Models Comparison and Re-meshing in the Context of Mechanical Design Optimization.- Distance Solutions for Medial Axis Transform.- Automatic Non-manifold Topology Recovery and Geometry Noise Removal.- A New Procedure to Compute Imprints in Multi-sweeping Algorithms.- Defeaturing CAD Models Using a Geometry-Based Size Field and Facet-Based Reduction Operators.- Session 3A: Parallel & Hybrid.- Towards Exascale Parallel Delaunay Mesh Generation.- On the Use of Space Filling Curves for Parallel Anisotropic Mesh Adaptation.- Mesh Insertion of Hybrid Meshes.- Tensor-Guided Hex-Dominant Mesh Generation with Targeted All-Hex Regions.- Session 3B: Applications.- Using Parameterization and Springs to Determine Aneurysm Wall Thickness.- Hybrid Mesh Generation for Reservoir Flow Simulation in CPG Grids.- VECTIS Mesher – A 3D Cartesian Approach Employing Marching Cubes.- Shape Operator Metric for Surface Normal Approximation.- Session 4: Tetrahedral Meshing.- The Meccano Method for Automatic Tetrahedral Mesh Generation of Complex Genus-Zero Solids.- Collars and Intestines: Practical Conforming Delaunay Refinement.- An Analysis of Shewchuk’s Delaunay Refinement Algorithm.- Hexagonal Delaunay Triangulation.- Tetrahedral Mesh Improvement Using Multi-face Retriangulation.- Session 5: Adaptivity.- Automatic All Quadrilateral Mesh Adaption through Refinement and Coarsening.- Optimal 3D Highly Anisotropic Mesh Adaptation Based on the Continuous Mesh Framework.- Anisotropic Mesh Adaptation for Solution of Finite Element Problems Using Hierarchical Edge-Based Error Estimates.- On 3D Anisotropic Local Remeshing for Surface, Volume and Boundary Layers.- A Comparison of Gradient- and Hessian-Based Optimization Methods for Tetrahedral Mesh Quality Improvement.

Blurb

This volume contains the articles presented at the 18th International Meshing Roundtable (IMR) organized, in part, by Sandia National Laboratories and held October 25-28, 2009 in Salt Lake City, Utah, USA. The first IMR was held in 1992, and the conference has been held annually since. Each year the IMR brings together researchers, developers, and application experts, from a variety of disciplines, to present and discuss ideas on mesh generation and related topics. The topics covered by the IMR have applications in numerical analysis, computational geometry, computer graphics, as well as other areas, and the presentations describe novel work ranging from theory to application.