Gridgen's anisotropic tetrahedral extrusion

Gridgen's anisotropic tetrahedral extrusion has been upgraded so that hybrid meshes can be rapidly and robustly generated as illustrated by this mesh for a slat, wing, and flap.

Hybrid Meshing Advanced in Latest Gridgen Release

FORT WORTH, TX (6 August 2008) – Pointwise announces the latest release of their Gridgen meshing software with enhanced hybrid mesh generation capabilities for computational fluid dynamics (CFD).

Gridgen's most advanced hybrid meshing technique is anisotropic tetrahedral extrusion where layers of high-quality, high-aspect ratio tetrahedra are extruded from a triangular surface mesh in order to resolve boundary layers and other near-wall phenomena. The new Gridgen speeds up the extrusion process by a factor of up to 10, expands the capability of anisotropic triangle generation for highly curved surfaces, and improves the robustness of the tetrahedral mesh generator when surface edge lengths vary more than six orders of magnitude.

"Taken as a whole, these enhancements significantly impact the ability to rapidly generate hybrid meshes for complex configurations" said Dr. John Steinbrenner, Pointwise's vice president for research and development. "Our customers' experiences over the past 18 months generating hybrid viscous-resolution meshes directed the development that went into Gridgen V15.12," he continued.

In addition to the hybrid meshing improvements cited above, new capabilities in Gridgen Version 15.12 include a mesh quality metric for the ratio of adjacent cell volumes, face-based CGNS export, and the ability to import CATIA V5 R18 and NX 5 CAD format files.

Pointwise, Inc. is solving the top problem facing engineering analysts today: mesh generation for CFD. Pointwise, Inc.'s Gridgen and Pointwise software generate structured, unstructured, and hybrid meshes; interface with CFD solvers such as FLUENT, STAR-CD, and ANSYS CFX as well as many neutral formats such as CGNS; run on Windows (Intel and AMD), Linux (Intel and AMD), Mac, and Unix; and have scripting languages that can automate CFD meshing. Large manufacturing firms and research organizations worldwide rely on Pointwise for their complete CFD preprocessing solution. More information about Gridgen and Pointwise is available on Pointwise's website,

Pointwise and Gridgen are registered trademarks and Pointwise Glyph and Gridgen Glyph are trademarks of Pointwise, Inc. All other trademarks are property of their respective owner.