Spring Release 2.9 of MeshGems available: what’s new?

· MeshGems Release
Author

Every 6 months, Distene delivers its new release of MeshGems. Here are the highlights of this MeshGems 2.9 version:

MeshGems in general:

– New features

  • The speed of the tag system creation has been substantially improved. This is especially effective when reading a mesh containing composite tags.

 

Surface Meshing:

– New Features

  • Support of full patch independent meshing on user-defined hyper-patches. This improves the resulting mesh regularity and quality, as well as the respect of the sizemap: no more impacts or artifacts in the resulting mesh caused by the patch definition, all of this while ensuring all vertices are exactly placed on the original geometry.

  • Strict preservation of the input tessellation of some user selected CAD faces when meshing on hybrid CAD (i.e. a combination of discrete and analytical geometries)

– Improvements

  • Increased meshing robustness
  • Accuracy of local anisotropic sizemaps when meshing on discrete geometries

  • 2D proximity with more local control
  • Input topology processing: better process of ill defined patches
  • Meshing on DCAD
  • Quadrilateral meshing, including the quadratic quad meshing

 

Mesh Processing:

– Improvements

  • Better handling of complex overlaps in the mesh cleaning operations

 

Volume Meshing:

– New Features

  • Parallel Tetrahedral Meshing: volume mesh coarsening
  • Parallel Tetrahedral Meshing: full support of anisotropic meshing

  • Hexahedral Meshing: support of 3D isotropic sizemap

– Improvements

  • Tetrahedral Meshing: various improvements regarding splitting of overconstrained elements and sliver processing
  • Parallel Tetrahedral Meshing: robustness & scalability enhancement
  • Hybrid Meshing: quality and robustness improvements, in particular of the imprinting feature

  • Quadratic multi-element volume meshing (curve propagation inside domain)

 

Previews:

Version 2.9’s distribution includes a preview of new upcoming meshing components, provided for beta-testing purposes: feel free to ask for your free trial license. These technologies are:

  • an automated extrusion mesher. Some geometries can be easily defined by an extrusion from a surface and following a given path. While MeshGems is already capable of meshing very complex geometries, it will soon also provide an easy way to mesh automatically these simpler geometries.
  • a new “resilient” tetrahedral mesher. What a pity to have the 3D mesh generation, and thus the entire meshing process, failing because of one or a few faults in the input surface mesh. With this new technology, MeshGems is proposing an ultimately guaranteed volume meshing success where only faulty parts are automatically fixed, meaning that the original mesh is preserved in valid areas.

 

Leave a Comment