CUBIT™ 15.9 Released October 14, 2021

The CompSim-Geometry and Meshing Team is pleased to announce Version 15.9 of the CUBIT™ Geometry and Mesh Generation Toolkit. The following is a sampling of new capabilities and improvements introduced in CUBIT™ 15.9. See the CUBIT™ 15.9 Release Notes for a complete list, which includes resolved user tickets and capabilities developed in support of Next Generation Simulation (NGS).

What’s New…

  • Capability:  Machine learning is used to rapidly classify typical mechanism parts such as springs and then automatically simplify selected 3D springs to 1D curves using Scalable Geometric Modeler (SGM) for SM and SD analyses.  This spring reduction capability has been tested on ND parts to accelerate the design to simulation workflows.
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Machine learning rapidly reduces 3D springs to 1D curves using Scalable Geometric Modeler (SGM)
  • Capability:  Parallel inline all-hex mesh generator Sculpt now offers options to generate adaptive meshes based on material.  Also, Sculpt now provides a new option, ‘input_stitch’, to read stitch files, which is supported in Sandia’s SPPARKS (Stochastic Parallel PARticle Kinetic Simulator) tool.
  • Capability: Surface and volume meshing schemes have been enhanced to address mesh size related issues. Mesh sizing on curves of a discrete surface is now respected during triangle meshing.  Pave quad meshing scheme has been made robust to handle mesh size that approaches local feature size, especially at holes.  A new command has been added to set minimum edge length in the parallel tet mesher.
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  • Performance:  CUBIT™ 15.9 delivers a lightweight Uniform Mesh Refinement tool (UMR Lite) for generating a series of large refined meshes in billions within minutes on desktops for high fidelity simulations or solution verification studies.   This capability has been tested on “cavity” meshes for EM simulation using EMPIRE.
  • Usability:  CUBIT™ 15.9 GUI now provides Breadcrumb navigation to guide users and save real estate in the command panels.  New command panels have been added to reduce bolts and springs, generate solutions for thin-wall volumes, and launch lightweight Uniform Mesh Refinement tool (UMR Lite).
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Breadcrumb navigation GUI pointing to UMR Lite command panel
  • Usability: User contributions to the Python script library continue to grow. These scripts are tested nightly against multiple versions of CUBIT™ on all three platforms. New CubitInterface functions have been implemented to support Python scripting.

How to Get it…

CUBIT™ is available to anyone on the Sandia LANs. CUBIT™ 15.9 will now run automatically from the Linux command prompt, replacing CUBIT™ 15.8. 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™ 15.9 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™ 15.9 Release Notes provide a description of all the new features included in CUBIT™ 15.9. 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 Roshan Quadros.