The CompSim-Geometry and Meshing Team is pleased to announce Version 17.02 of the Cubit® Geometry and Mesh Generation Toolkit. The following is a sampling of new capabilities and improvements introduced in Cubit® 17.02. See the Cubit® 17.02 Release Notes for a complete list, which includes many resolved user tickets and new capabilities developed in support of the Next Generation Simulation (NGS) initiative.
What’s New…
Meshing
The primary triangle and tetrahedral mesher in Cubit® has been updated to MeshGems 2.15. This upgrade comes with more robustness, better quality elements, and improved capabilities.
The normalized inradius metric now returns negative values for inverted elements. Though not common, robustness is gained by checking for inversion.
The ‘remove overconstrained tet’ command now takes volume ids, automatically finding overconstrained tets and removing them. A ‘preview’ option has also been added to show which tets will be removed.
The new ‘improve tri’ command collapses and swaps mesh edges to improve mesh quality of triangle elements. The operation that results in better quality is used.
Improve tri command automatically improves triangle mesh quality
Geometry Preparation Capabilities
The ACIS geometry kernel has been upgraded to ACIS 2023.1. This upgrade comes with improved geometry healing.
Miscellaneous
You may include a tolerance parameter for equality operators rather than write a lengthier selection with inequalities. e.g. select volume with volume = 5 tolerance 1e-3 rather than select volume with volume > {5 - 1e-3} and with volume < {5 + 1e-3}
To assist in finding syntax errors in Python script, the cmd() and parse_cubit_list() functions in the cubit module now raise exceptions for syntax errors. This can reduce the amount of time debugging and tracking down programming mistakes in scripts.
A new python function find_overlapping_curves returns sets of overlapping curve ids, given a list of curve ids.
How to Get it…
Cubit® is available to anyone on the Sandia LANs. Cubit® 17.02 will now run automatically from the Linux command prompt, replacing Cubit® 16.18. It is also licensed free of charge for government use outside of Sandia. If you are a current Cubit® licensed user, you may get Cubit® 17.02 by visiting and following the instructions on the Cubit® Download page. See Cubit® Licensing for information on obtaining a license.
How You Can Learn More…
The Cubit® 17.02 Release Notes provide a description of all the new features included in Cubit® 17.02. For detailed information follow the links to the online users manual.
Classroom tutorials are advertised on the Cubit® Tutorial Webpage, where you can also find a download for self-guided tutorials.
For more information contact, Cubit® Product Owner Ryan Viertel.
