Product News: Software
CFD Meshing Software offers hybrid hex-tet meshing capabilities.
Press Release Summary:
April 25, 2014 - Pointwise v17.2 computational fluid dynamics (CFD) meshing software generates structured, unstructured, and hybrid meshes; interfaces with CFD solvers; and has scripting language, Glyph, that can automate CFD meshing. Extension of T-Rex hybrid meshing technique, included, lets users generate near-wall layers of hexahedral cells. Along with CGNS, FUN3D, ANSYS Gambit, STAR-CD, and SC/Tetra compatibility, features include support for OpenSUSE, Ubuntu, and CentOS Linux distributions.
Original Press Release
Hybrid Hex-Tet Meshing in Latest Pointwise Release
Press release date: April 14, 2014
“As our T-Rex technique for generating hybrid prism-tet meshes with boundary layer resolution continued to evolve, our customers collectively expressed a strong interest in using hex cells in the boundary layer instead of prisms,” said Dr. John Steinbrenner, Pointwise’s vice president of research and development. “Hex cells are generally thought to provide the basis for a more accurate CFD solution, plus there will be fewer hexes than tets so computations would be faster. Fortunately, post-processing T-Rex’s tet cells into hexes (12 tets per hex) was a natural extension of the existing tet-to-prism combination algorithm.”
T-Rex (anisotropic tetrahedral extrusion) is a highly automated, advancing layer technique for generating a CFD mesh with boundary layer and wake resolution. The technique extrudes layers of high-aspect ratio, right-angle-included tetrahedra outward from a surface mesh. A post-processing operation sequentially combines three successive tetrahedra into a stack of prisms. In this new release of the technique, extrusion from a quadrilateral surface mesh begins with a single pyramid, after which the usual tet extrusion begins. The resulting tets (and that first pyramid) are post-processed into stacks of hexes.
“This new hex capability in T-Rex is just the first step of many that will vastly expand the scope of mesh types that Pointwise can generate,” said John Chawner, Pointwise’s president. “We look forward to customer feedback on this first release of unstructured hex cell generation in T-Rex to guide further developments.”
Pointwise Version 17.2 also includes updated compatibility with CGNS, FUN3D, ANSYS Gambit, STAR-CD, and SC/Tetra; support for the OpenSUSE, Ubuntu, and CentOS Linux distributions; several productivity improvements; and defect corrections.
Pointwise, Inc. is solving the top problem facing engineering analysts today – mesh generation for computational fluid dynamics (CFD). The company’s Pointwise software generates structured, unstructured and hybrid meshes; interfaces with CFD solvers, such as ANSYS FLUENT, STAR-CCM+, ANSYS CFX and OpenFOAM as well as many neutral formats, such as CGNS; runs on Windows (Intel and AMD), Linux (Intel and AMD), and Mac, and has a scripting language, Glyph, that can automate CFD meshing. Large manufacturing firms and research organizations worldwide rely on Pointwise as their complete CFD preprocessing solution.
More information about Pointwise is available at www.pointwise.com.
Pointwise is a registered trademark and Pointwise Glyph and T-Rex are trademarks of Pointwise, Inc. All other trademarks are property of their respective owner.
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