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Pointwise Presentations at 14th U.S. National Congress on Computational Mechanics

This year's 14th U. S. National Congress on Computational Mechanics is being held at the Palais des Congres de Montreal in Quebec, Canada from 17-20 July. Pointwise will be presenting papers at two of the Minisymposiums. Please stop by for one or both of our presentations.

Attend a Pointwise Presentation

Node Creation for Isotropic Refinement of Tetrahedral Meshes

Nick Wyman and Steve Karman, Pointwise, Inc.

This presentation will discuss a novel node creation technique being developed for Pointwise that results in high quality isotropic tetrahedral meshes.

The presentation focuses on a physics-based node creation method, which generates smooth node distributions for a Delaunay isotropic tetrahedral mesh program. The method automatically adds and deletes nodes to meet the spacing field defined by the input boundary triangulation. Adaptation is possible by defining fixed source nodes that interact with the interior nodes in the same physics simulation. Several example cases demonstrate the improved mesh quality resulting from this node creation scheme.

Date and Time

17 July 2017
2:50-3:10 p.m.

Location

14th U.S. National Congress on Computational Mechanics
Minisymposium: Symposium on Trends in Unstructured Mesh Generation
Room: 514A

A Practical Approach to Curving Meshes for Realistic Geometries

Steve Karman, Pointwise, Inc.

This presentation will focus on creating high-order meshes up to polynomial order 4 for Finite Element Method fluid flow solvers.

Linear element meshes for complex geometries are first elevated to high order by introducing new edge, face, and internal nodes, which increases the polynomial degree. The new surface nodes are then projected onto the true geometry using discrete and/or CAD geometry. These surface node perturbations are used to position the interior nodes, ensuring valid, high quality mesh results. This presentation covers enhancements to the method presented in AIAA-2016-3178.

It will include several realistic three-dimensional meshes, such as AIAA DPW 6, AIAA High-Lift PW 3, and BANC-III landing gear.

Date and Time

18 July 2017
10:15–10:55 a.m.

Location

Palais des Congres de Montreal, QC, Canada
14th U.S. National Congress on Computational Mechanics
Minisymposium: Advances in High-Order Methods for Computational Fluid Dynamics
Room: 520A